My opinion? PC gamers won't need to upgrade much (although some additions couldn't hurt). RAM requirements won't skyrocket either (the pipeline for a PC game [and production] is different than that of a closed ecosystem known as a console).

Depending on your proc/mobo/GPU combo (though it doesn't matter too much), for next gen stuff, I recommend 16GB of DDR4 (running, at least, at 2.4GHz).

So Xbox Series X has been announce and it has 12 teraflop RDNA performance that's equal to RTX 2080 Super more or less, plus Ryzen 3000 8 core 16 thread and SSD Nvme as standard. I bet what we see is the new bare minimum for  multiplatform games that will be coming to, Windows Store,  Steam , Epic Store , GOG , etc etc. 

But to mitigate some bad port games, usually it's saver to  upgrade to a slightly better hardware then the consoles spec, of course as PC gamer if you want playing on PC is better buying more expensives part then the consoles,  because you buy PC to have more than just games that look the same, but want to have better performance than the consoles.

So minimum requirement are:

GPU Nvidia 2080 super  is bare minimum but if you want more premium it's probably buy 2080 Ti or wait for AMD RX 5800 or RX 5900 or perhaps wait for Ampere with 3080 or 3080 Ti.

CPU probably going to be big, 8 core , 16 thread will be standard and minimum requirement 

SSD perhaps a little bit leeway , but Nvme should be the most obvious although SATA 3 is still playable but SSD is must for next gen, 

For RAM , i think 16 to 32GB of DDR4 RAM is suffice for now.  

Of course that if you are looking for 4K gaming, there is still be some people who play on 1440p or even 1080p. But Next year Nvidia will release new GPU based on 7nm+ , we will see new standard even on PC gaming. 4k will be standard 

So prepare your money 

When PS4/Xbox One was announced, many new games and multiplatform games requirement for RAM are 8GB , most of it. 

PS3 and Xbox 360 was different from X86 and at that time PC just begun the era of dual core so we cannot compare directly. PS4 and Xbox One tho using 8 core it's still using very slow and weak netbook CPU hell it's even weaker than i3 from 2013.

Xbox SX and PS5 will be different , they will come with a legit Ryzen X3700 as minimum. 

It's not guess work, some legit insider from Reset Er, The Verge , Kotaku and even Brad Sam from Windows Central already confirmed  it's more powerful then 2080 and it's 2 time Xbox One X number but 8 to 9 times then Xbox One s performance, leading to conclusion around 12 teraflop Navi Number. Even we have the article already

Agree but to run a next gen games that build specially for Anaconda A.K.A Series X like Sanua , i bet it need powerful GPU. 

True if you want playing cross gen games that coming to PS4/Xbox One or even MOBA and Free to play games and Indies games

But to run games that specifically build for Xbox Series X, then equal spec is bare minimum, unless you want to run like crap. 

PC with powerful spec , that's why i make this thread on suggesting to upgrade at equal spec with xbox Series X

Console spec will be the bare minimum, while PC spec above Xbox series X will be bonus and able push more above consoles standard. Because most PC gamers want to run 60 fps , then twice the spec of Xbox Series X is minimum. Or you will choose to sacrifice graphic over performance. 

I did a post about this a while back and got the same kind of responses. Fact is the minimum requirements of next gen multi platform games will be exactly what is in these next gen consoles. Not sure if that will be a RTX2080 super, though, but things like hardware ray tracing will be a thing and most gpu's nowadays don't support it. Obviously, you can always lower the graphics settings but what kind of self respecting pc gamer wants to play games like that?

All next gen games will be built base on SSD , so SSD will not be just about storing but also streaming some aset and cleaver technique that never been done on PC or any device. This never been implemented because no machine use this as standard, gladly console push as standard. Hell even PC owner like you still don't agree of upgrading PC to have SSD as standard. just look at thi video  

My opinion? PC gamers won't need to upgrade much (although some additions couldn't hurt). RAM requirements won't skyrocket either (the pipeline for a PC game [and production] is different than that of a closed ecosystem known as a console).

My setup rightnow is 8 GB DDR4 RAM , (even some games required 16 for games like mirror edge 2). How much RAM do you recommended to play games like Sanua 2 that shown yesterday or perhaps future games that build based on PS5 or Xbox SX ? 

Zen 2 8 core is already confirmed the speed is not yet confirmed, 2080 performance is still in argument, but we can safe to say RTX 2080 will be a mig gen spec even for mainstream PC games next year. 

Tell me and please elaborate, because what understand you can run games with similar spec but if you want more, you need better hardware is it? Or are you expecting some magic here, where shaders and effect from 2020 run with GPU from 2013 

I am not saying we have to , but is safe to have slightly better hardware, , many games coming to PC as console port always bad some got patch but many still have problem.(you can check DF videos)  

This is based on rumor and some facts,  is not like you will agree even if my suggestion is 2070 anyway or even 2060.

Then you agree RAM in the future will need more then 8 GB

Battlefield is the best example that more RAM is better on PC, because it can run on low RAM but it's potential were limited if it's running on low RAM. 

my suggestion comparing to X3700 is just opinion based, of course there is other factor like clock speed , bandwidth , latency etc. Is just an easy guess 

Well this is not "Some  Insiders ", but i do agree we need more confirmation

Agree as well FLOP doesn't work that way, but for sure console will be the baseline for minimum requirement for what can we can expect to run new triple A games 

Well you can run on older graphic but you need equal class in performance, for instance you do not need HD 7850 to run 8th gen games , but you need an equal GPU from previous year/ gen to match the performance of HD 7850 (for example GTX 5800 from 2011 or high end GPU from that era) , if you want to have the same graphic and same performance with newest console.

Well it depend on where developer will be focusing their games is. Cross gen games will not require PC gamers to upgrade to Xbox SX spec , they will just stick to PS4/Xbox One as standard (GTX 6600/HD 7850) 

But new engine that using Xbox SX or PS5 as standar will require new spec standard. 

"Plus, by the time the Xbox One series X and Playstation 5 release, those consoles will only have mid-range equivalent GPU's anyway." 

The more reason why upgrading is a must, because 2080 will just be a mid range GPU, and 8 core Zen 2 will be just mid range

We will see some change in the future where raytracing will be implemented on major  games just like physicist and particle or physics based geometry  has been implemented in this gen. even some new technique or a hybrid.

Some 3D guru and expert on Nvidia and AMD also agree with this.

Well i don't know that that , but i just relying information from other people opinion (Digital Foundry ) and it we can assume that opinion has some truth and has a lot of weight.

If you are saying PC has shit - ton memories then consoles , it means SSD are not required?  the problem is you suggesting less RAM. This is contradicted to you first argument. Shouldn't it mean that SSDs become prominent due to using less RAM?  

Mechanical disk will still be here, i can agree. 

The problem is some games indeed require 16GB of RAM

I still don't understand how someone, who seems so knowledgeable about graphics, can say something like that. Of course pc requirements will jump next year. It's not about what hardware is in the majority of pc's right now, it's about the games. And right now, all major game developers are making games that are designed from the ground up around to take full advantage of these new console's hardware and ray tracing support.

Sure, you can say they will support current gen consoles for a couple of years and we will see a ton of cross-gen titles that don't really use this new hardware to its fullest potential, but that's also just speculation. It can also be that both next gen consoles launch with a bunch of titles that aren't on current gen anymore. Fact is that there will be a massive jump in minimum pc requirements for multi platform games that do skip current gen consoles and they've already shown a couple of them like Godfall and Hellblade 2.

It takes many years to make a AAA game. Most of the games they are currently developing can't be "designed from the ground up around to take full advantage of these new console's hardware" because the third party developers didn't even know the capabilities of the new console's hardware a year ago.

The fraction of their games in development which indeed are "designed from the ground up around to take full advantage of these new console's hardware" will be probably released in 2022, 2023 or later. Don't expect them at console launch or in 2021.

And in 2022 - 2023 PC graphic cards with RTX2080 performance will be quite affordable.

Additional to the argument above, third party developers are very interested to sell their games to many customers. By limiting the supported hardware base too much will cost them a lot of money.

How big will the hardware base be at the end of 2020, if the minimum specs are RTX 2080 (or RTX 2070 Super) and raytracing capabilities? Around 8 million consoles (PS5 + XSX together) plus a few million PCs with that hardware?

Will that hardware base satisfy them enough to ditch all hardware below for their holiday 2020 games? Or are cross-gen titles much more probable?

We will have to wait and see what the first wave of next gen games looks like and saying we will see developers supporting all of its features in 2024 or later is just speculation.

And yes, a 2080RTX will be more affordable after a while but that doesn't change the point that the OP is trying to make. Any multiplatform game you've played since 2014 has a minimum requirements of a 660GTX and next year that will change to a 2080RTX or whatever pc gpu equivalent is in these next gen consoles. These are simply facts

I am sure Xbox series S that will be coming next year will have stronger then that. And you are using Laptop ? that GPU on Laptop is weak compared to desktop. Try to build desktop for gaming.