Revival: Turbo Machines. I know this isn't a Nintendo franchise, but I'd love to play a revival of this, with 8 player local, 32 player online races, with amazing graphics and a 1st person option for online. Would be a hilarious multiplayer.
Crossover: No Man's Sky and Super Mario Galaxy. I have no idea how this would work but I saw some aliens the other day on a new planet in NMS that really looked like they needed a stomp on the head. Imagine procedurally generated Mario levels! Amazing! Wow!
Exclusive: This category does seem ripe for pinching a popular game and locking it down to the NX. Otherwise, what's the point! So i'll say either the next Halo, or whatever Bungies next game turns out to be. Or maybe Civ6? I don't know.