Looking at what Nintendo has done in the past has some value, but I would be cautious about saying "well that's how things were done in the past, so automatically that's how things are done now".

Nintendo of today is a very different company from even 10 years ago, the board of directors is very different. Nintendo of even 10 years ago would not be making smartphone games, theme parks, paid DLC, paid online, using an off the shelf Nvidia GPU, etc. etc. It's clear current Nintendo embraces multiple revenue streams and the whole "well Miyamoto doesn't like CDs/online/smartphone games, so we're not going to do it" philosophy has gone out the window.

They're not nearly as dogmatic about stuff anymore, if something makes them money, they more often than not will do it.

Interestingly there was a recent leak that showed the Wiimote prototype was indeed originally an accessorie for the GameCube. 

https://twitter.com/spmrp/status/1056030564002582530/photo/1

They just decided to repackage it and make it a new hardware platform, but I recall during the GameCube era Iwata was saying they had some new accessorie coming that would expand the appeal of the GameCube, this was pretty much it. 

If/when they do a Switch revision it needs to be an upgrade across the board. The New3DS may have had a better CPU and much more RAM, but it had the same GPU as the regular 3DS and that prevented many games from benefiting from the otherwise better hardware other than better load times. And upgrade across the board would allow older games to run better and fix framerate issues.

A full-on Switch 2 in 2022-23 should use whatever the latest mobile chipset is then. The Tegra X1 will be almost a decade old by then. Nvidia would be the best choice as they get more per flop and it would help with backwards compatibility. But by then someone else might take the lead in that market. They shouldn't launch a new system until the technology is there to have a switch-like device capable of running PS5 games at least as well as the current Switch runs PS4 games.

The original post I've quoted stayed that a new Switch with basically a more powerful hardware and pretty much new features but overall the same hardware would be nice but since it's Nintendo, it wouldn't happen. So I decided to show how that exactly what Nintendo is actually doing it for years, releasing pretty much the same console with more power and new features. The Wii added motion control to the Gamecube with more power and the Wii U added HD support and the gamepad. The DS added a second screen to the Game Boy Advance and the 3DS added 3D support, with obviously more power every time.

Waiting until 2022/2023 will be a disaster. IMO Nintendo knows this 100%, they're not going to wait that long. There is no Game Boy/DS second product line for Nintendo to fall back on if the "console" fails either. It's far too risky to do things that way. The upgrade cycle has to change.

Even look at their software by the end of 2019 Nintendo will have used up Mario 3D, Zelda, Pokemon, Pokemon Lets Go, Animal Crossing, Splatoon, Mario Kart, Smash Brothers, Luigi's Mansion, probably Metroid, Fire Emblem ... they can make sequels to these IP but the hardware boost is going to be nowhere near the same because much of the fanbase will own a Switch already for the pre-existing game. 

With what new IP are they going to sell the Switch with for 2020, 2021, and 2022? It will be a disaster with declining sales every year and no, some little New 3DS style upgrade or even Switch Mini is not going to be enough for Nintendo to maintain a high level of sales. 

Well then no console is anything but an upgraded NES by your metric. And I mean no console not even Sony or Microsoft and NES is just an upgraded whatever came before it. I mean Al they did was add joysticks, add more buttons, made 3d gaming, made be gaming, made two screen gaming and nothing else really.

That's what you sound like

That's what you wanna read, not what I'm saying. The NES and the SNES haven't much in common, neither have the SNES and the N64, or the N64 and the Game Cube. On the other hand, the Genesis was basically a more powerful version of the Master System but had nothing in common with the Saturn nor the Dreamcast.

My point was that is a Nintendo thing to ensure backward compatibility since the Game Boy (for handheld) and the Game Cube (for home consoles).

But they scrapped it with the Switch witch have (obviously) nothing in common with previous consoles.

Here's my problem with this "update every 2-3 years" idea; I don't want games in 2020 and 2021 to run like shit on my base Switch. I paid $479 for my system, I want at least a good 5 years of support from it without being forced to buy gimped, choppy versions of games that come out after the Switch 1.5, fuck that shit.

Switch was behind Playstation/Xbox/PC from day one though, so people have already accepted that its not graphically competitive, they knew that when they bought it. As such, I think that's a pill the general audience has already swallowed and that it falling even further behind visually just isn't a big deal.

Next console may have an integrated SoC in the dock station (as may speculated about the switch).
Also I'm expecting them to add more Nvidia IA technology for better scalabilty form mobile to TVs (like DLSS).

Nintendo can't run their entire business based on your needs. 

It's not your ass on the line when (like it does 50% of the time for Nintendo) the next platform transition back to 0 goes badly for Nintendo. 

If I'm the Nintendo president I have to look out for my business first and foremost and I'm not taking that risk of a hard reset to 0. With only one hardware line (no GBA/DS/3DS to fall back on) and no other major divisions like Sony/MS have ... fuck no. 

It's not like OG Switch gets 0 games and is rendered completely useless even if they do the 3-year cycle. Most/all Nintendo games can still run on it, and so could the same exact indie/third party games that were going to come would come anyway. That's likely still hundreds if not thousands more games coming to that model of Switch.

It would just likely mean initially there might be 5-15 third party titles a year that run on the "Pro" model that simply would not be possible on the regular Switch, and then by 2021/2022 you can have a more phased transition where maybe that increases to 20-25 games a year. 

IMO that's fair all around.