Nintendo didn't wait for their fans this time, and decided to spoil the game themselves as they listed the game on their site.
Per the listing, the new adventure promises that Mario and friends will go on “a galactic journey to defeat a malevolent entity and save your Spark companions. Explore planets throughout the galaxy as you uncover mysterious secrets and compelling quests!” I, for one, am thrilled to see more Rabbid Peach shenanigans. The splash imagery leaked ahead of the show shows a rockstar-looking Rabbid who is new to the franchise. Luigi also appears to have a bow!
It looks pretty good. I'll probably end up playing it. Though I never did beat the first one. I got stuck on one of the final boss fights and ended up watching a video of the final boss and ending. So I'll probably wait for it to be on sale.