Now with Hyrule Warriors coming out by Tecmo Koei and Sonic being meshed with Yoshi in the new DLC it seems that Nintendo is open to letting other companies work with their beloved games after all. Who would you like to make a new Mario, Zelda, Metroid or something different?
Zelda- besides the Tecmo Koei which looks like a really really fun hack n slash (I LOVE HACK N SLASH)
I think they should let Platinum games make a Zelda in the style of DMC, Bayonetta
Mario- This is a really tough one and while its best to keep it made by Nintendo I think Warren Spector should be brought in to be a creative director on a 3d mario game.
Metroid- This is the one that could be huge. If Nintendo partenered with a big corporation and got access to the Frostbite engine or the Unreal 4 engine this could be a really great FPS.
StarFox-Platinum games nuff said.