Rextro and Vemdi as hosts of a Mario Party Like game using Vendi's Tonics to affect gameplay much like the mini games we already saw.
I wish the game Snake Pass had Trowzer as the protagonist in a quest to find his pants! But Sumo already came up with the idea.
And maybe just stretching it a bit Kartos as a host of the racing game but I would prefer a nice new racing character with a sticky name go karts, hovers and planes
(include David Wise's Music)