Several ideas spring to mind...
-An epic adventure/fighter utilising Super Smash Bros. controls and engine (even though that would mean a sidescroller)... kinda like the Subspace Emissary but longer and with a real story (never gonna happen, but that's what this thread is for right?). They could even have RPG-style leveling up on the characters, and teams like in Tales of Symphonia.
-The truly scary game I seem to be talking about a lot on these boards... for a description, just check out my thread 'truly scary games' ;).
-A game featuring highly advanced and deep swordplay, Mario Galaxy-like flying (talking about the Red Stars here), guns, brawling...
-A game, ANY game, in which Albert Wesker is the main character. Hell, make a Wesker Party for all I care - I'm buying it.
I drink your milkshake.
