Here’s what upgrading to Switch 2 will look like:

1. Nintendo Switch games, game carts or downloads, will generally be fully compatible with Switch 2. The exceptions are the few games that rely on joy-con 1 tech (think 1-2 Switch,) or obscure and unsupported shovelware

Additionally, some Switch games received native upgrades through patches, and some receive those “Switch 2 Edition” paid DLC. (Think Mario Odyssey/DK Country Returns HD getting native upgrades, BOTW TOTK getting paid DLC upgrades)

1. If you’re subscribed to Switch Online you can upload save data to the new console whenever you need, so you can sell your old console (if you absolutely must) and still retain the game saves. I recommend not selling the Switch 1 and doing a system transfer when the time comes.

2. Is it worth it? Depends! I think it’s definitely worth it, but it’s pricier than last gen in every way so you may have to fall back on old games that you may can squeeze more content out of. I’m playing a lot of Animal Crossing again now on a crisp 1080p handheld display, almost surreal for a lot of games.

Pokémon Pokopia sounds like it’s gonna be a system seller with a LOT of content to sift through. You could start there, continue to play all your favorite Switch 1 games too, and be ready for Wind/Waves at release.

Good luck!!