PS5/NextBox are going to have slow uptake because they will sell for 500-600 and be backwards compatible with current gen. I think that means we have like 2-3 years of cross-gen games, which means the same handful of interested devs can downport their versions to Switch if they want. By the time everyone fully moves over we will be in Switch 2 territory, and that will not be a 500+ console so should have faster uptake.
The Switch's main appeal isn't going away with the next gen either. It's always been behind in power, but it still retains the advantage of taking it where you want. The real threat here is whether XCloud, PSNow or in-home streaming solutions ever take off and make those games similarly playable anywhere. I suspect the main barrier is that people still don't like carrying controllers for their phones, even though that is basically all the Switch itself amounts to.
Not for nothing the Switch is kind of setup to run for efficiency at a $300 rate more demand and you are at 2hrs of gaming and this becomes the Nomad all over again where people just start hating it because of the battery life
yeah I think the streaming will still be clunky until 5g is in full effect probably by the end of 2021 but by time the major parts of the world converts could be 2023, but I guess will get a better feel once Stadia is out because PSnow
failed in this attempt but that probably had more to do with content