Heh heh. There was a thread exactly like this on IGN!
Starfox: Massive Multiplayer Online Role Playing Game (MMORPG). Just imagine it. Just imagine it. Shooting around real-time space taking part in epic battles with real people. Drop off onto surrounding planets for a nice breather or side-quests or part of a main quest! Incredible!
Kirby: That Kirby game on DS. Y'know, the really innovative one that showed of the DS's features spectacular? Well, I think Kirby should take the same path on the Wii. A game that innovatively takes advantage of the Wii please!
Pokemon: Yes... an MMORPG would be very nice, but I've already said that about Starfox. I think Pokemon Battle Revolution may be ideal. A chance to online battle people constantly. Although, an MMORPG would be better!
Mario: Well, we've got Super Mario Galaxy and I think Mario is continuing his trend. He's pathing the way for developers to come... like Super Mario 64 did for 3D-gaming, Mario will do the same for motion-gaming. Wii-va Ma Revolution!
MarioKart: Online matches similar to the DS version but with more features to do on it. Controls like Excite Truck (holding it like a steering wheel).
Zelda: I have to include it!!! Zelda should continue as it's going. It should be an epic adventure and should never go MMO or even online at all. It's a game about a single hero's adventure and should remain untouched. Twilight Princess seems to be showing how the Wii can perfectly compliment each other with new and old and damn-right gorgeous!
Pikmin: Everyone else is saying it and I agree. Wii is a match made in heaven for point-and-click style adventures. And Pikmin is a heavenly point-and-click style game. Yabba dabba doo! In terms of differences: I think some sort of clever leader multiboard over the web.
More coming soon...