They'd be insane to not make it backwards compatible. It doesn't seem like they are drastically changing the form factor and they made a lot of games work with both Switch and WiiU so it would make sense for Switch2 to work with all Switch games.
If it's NOT backwards compatible, people will only buy it for Switch 2 games. If it is backwards compatible, people may buy it just go get a better Switch for playing Switch 1 games and older games in better quality. I.e. a Switch upgrade.
They'd be insane to not make it backwards compatible. It doesn't seem like they are drastically changing the form factor and they made a lot of games work with both Switch and WiiU so it would make sense for Switch2 to work with all Switch games.
If it's NOT backwards compatible, people will only buy it for Switch 2 games. If it is backwards compatible, people may buy it just go get a better Switch for playing Switch 1 games and older games in better quality. I.e. a Switch upgrade.