There's the main aspect of modern gaming that doesn't really apply to retro: anticipation (other than anticipating translation patches or re-releases, maybe).
I don't keep up much, but right now I'm waiting for Samurai Gunn 2, as the first Samurai Gunn is the only indie fighting game I care about. This is a fast-paced, one-hit-kill fighting game. It works as a party game for up to 4 player, but 1-on-1 is still the best. The first had a very straightforward formula; you have a sword and a gun with 3 bullets. Bullets can be reflected with the sword if you time it right. The first to get 10 kills wins. All characters have the same abilities, so there is none of the usual mismatch and tiers nonsense. It was purely a local multiplayer game; there was technically a survival mode you could play solo, but it sucked as the AI was super weird. It seems like the sequel will add some new abilities and a proper single-player mode, among other things. For Switch and PC.
The other one is Shenmue 3. I don't care at all that they're using dated technology, etc. etc. I had issues with the first two games, but I enjoyed them overall and I'll play the sequel. My personal wish would be for the QTE shit to be dialed down in favor of a bit more fighting, as fights were super rare in the original games.
Link's Awakening has me torn. It's my favorite Zelda (by just a smidge!), but that art style has taken time to adjust to. But I'm getting there, which leaves another conundrum: the music. I'm not wild about it right now.
And yeah, the Vita is definitely dead, or near enough to it, and the 3DS isn't far behind at this point.
Unfortunately, yes. The Vita is still getting a little love in Japan, but with the Switch being the de facto Vita 2, it's taken over that market.
The Vita is still seeing PSN releases in the USA, with the occasional Limited Run release... but that's drying up fast. Sony has put an end to Vita unit production, and physical Vita game production. The 3DS doesn't have anything on the upcoming physical docket for the USA at all. And I wouldn't be surprised if Nintendo ended 3DS unit production soon. Nintendo is done with it, they are all about the Switch now.
The very last notable Vita and 3DS physical releases in the USA:
Shakedown: Hawaii recently got a physical release on Vita, which is interesting and cool. That's the version I bought, anyway! Pretty limited run on them, too, so I figured I better get on that train, especially since I enjoyed Retro City Rampage.