Not so soon, but eventually there won't be generations like we've come to know them. Thus is the flow of time and Moore's law.

Once gigabit internet becomes a thing, I think the game console's days are numbered.

A Netflix service will come (maybe from Netflix themselves) and you'll get all your games/movies/music ala cart from a streaming service.

That and in a decade or so I think even phones/tablets will be capable of generating near photo realistic graphics, good enough to stream to any display around a house that many people may not care for a dedicated "giant box" console.

They absolutely have to compete with Apple and Google,  and Ms and Sony are not going to loose.  They only have to sell enough units to be viable and make money doing. 

Gaming is only a small factor in the sale of Xbox and Playstation devices.  If they don't continue to expand the capability of them,  people will just be happy enough tethering their phone or using their Amazon fire box. 

Console gaming is not the vacuum it used to be.  They are competing with PC,  Set top boxes,  and tethered devices.  

As gamers we need to make sure gaming devices maintain a strong position in the market.  If PC,  tablets,  and smartphones rule the roost,  gaming is going to turn in to a heap of garbage. Again just look at what has happened to mobile gaming since smartphones killed off Vita and 3DS.  We can't let this happen to home gaming next. 

Doom-mongering. Right...

It's only doom for people paralyzed by the fear of change. It's not doom; it's progress.

What are you even talking about? It won't. The concept of generationless consoles isn't complicated. It just means that everything can play everything, to an extent. No one is being left behind.

so that means it's now back to Nintendo, and Sony to duke it out once more for supremacy of the living room.

There are so many signposts now that I'm certain most people will be looking in the right direction.

I don't want to have 3 or 4 different OS's for my computing needs.  As a consumer I want all of my tech to talk,  and I want all of my purchased software to work whether I am using a stationary home device,  a large portable,  a phone,  or vr/AR. 

Microsoft is already heading in this direction with UWA,  and I think it is the greatest thing in the world. It is absolutely illogical to have an Xbox,  an Android,  a Mac,  and a Sony TV.  People that fracture the market like this are just making life harder for themselves and everyone else.  

If Apple fans buy only apple devices and Sony fans Sony device and so on and so forth,  then that will make the market so much stronger. Furthermore having the same tech in your Home Computer,  You Laptop/Tablet,  your Phone,  and your VR/AR devices makes development a dream,  and results in much higher quality software. 

This is why we need a Playstation and Xbox line of phones and laptop/tablets.  We need cohesive ecosystems,  and we need options that are built around make world class gaming and entertainment experiences. 

I mean add portable and mobile devices to the line-up.  

Yes,  these would be gaming focused laptops/tablets and phones.  You would have you base Xbox on the big screen.  You have your laptop/tablet Xbox for around the house,  in the garage,  etc.,  and you have a mobile Xbox to replace your phone. Finally you have a vr/AR Xbox down the road that can be used for basically infinite tasks. 

All form factors run on the same family of chips,  with all software and OS features being shared.  This is a seamless experience between devices. Everything,  everywhere,  on every device. 

If that is not the pinnical of where computing should go,  then I don't know what we are even trying to progress for. 

NX would be sorta new gen right..? Don't know where to put that xD but PS5 will most likely be a thing and I'm guessing there will be another Xbox.