I won't put the obvious ones like Mario Kart and Mario Tennis on my list, because we all know that they're gonna show up when the time is right.
-a Grand Theft Auto game
-a Simpsons game, similar to Hit and Run
-a South Park game
-a 3d Pokemon game, similar to Red/Blue/Gold/Silver... no "dark pokemon" that you have to make good again.
-a true Tony Hawk game, not racing like Downhill Jam
-an Arena Football game