Right now, only Mario Kart World has any appeal to me, but I don't really enjoy the kart racer sub-genre that much, so I may just be impressed by its presumed level of quality. I'm sure that I'll own a Switch 2 eventually, but it may be some time after its launch.
If they didn't have the free roam mode, I'd be saying the same, but it sounds like I'll be able to explore and do stuff, otherwise it's more of a multiplayer thing. It's why I really loved Sonic All-Stars Transformed, because they had a whole campaign to do stuff that unlocked things that was more than simply just racing the tracks and that was something Mario Kart always lacked. It's why I thought Diddy Kong Racing was better than Mario Kart at the time.
That and Donkey Kong Bananza in July would have been enough to get me interested in a launch release, maybe even a replay of Breath of the Wild if I decide to give in to the stupid upgrade thing...still unsure about that...but neither have quite the impact as Super Mario Odyssey or Breath of the Wild was for me with the Switch 1 launch.