As a person with smaller hands who has purchased a ridiculous amount of Nintendo hardware over the last 25 years, I'll be glad if the Switch 2 is NOT much bigger in the hand than the current unit. I agree that OLED is much better than regular LED (and own 4 regular and 1 OLED Switch now), it's not a deal-breaker for me because my longer sessions are all on a TV anyway. More RAM, a faster chipset, backwards compatible with all the hardware-cartridge games we've already bought? Yes, please, we'll take 2. And at least one more copy of ACNH, maybe two. I hope the high-end Nintendo controllers will remain compatible with Switch 2; we own four or five of those.
And please, please, re-release Endless Ocean for Switch 2! I am seriously considering dragging the Wii out again because it's non-violent Subnautica and I want to play that title again. That, and Walk it Out, which I want to play every winter when cooped up in the house.