I keep getting these awesome gaming ideas. Few, if any, will come to light but I can dream.

Anime :
Gunsmith Cats/Riding Bean - GTA-esque adaptation. Focus on racing missions, with at least a quarter out of vehicle missions. Realistic Detroit map with Cops-and-Robbers grey morals theme. Campaign and Multiplayer.

Iria - Half Life 2 mod. Weapon likeness mods, high characters detail, new storyline. The game modes would have to make this stand out.

Cowboy Bebop - Unreal III mod. Co-Op story mode, 3rd person view with optional 1st person switch on weapon draw. Gears of War-esque type cover abilities. Pilotable vehicles, various cities with space travel and space combat.
Alternate game style: Action RPG.

Those are just off the top of my head. And most, except probably the extremes in Cowboy Bebop (hellacious licensing aside), are doable with a dedicated team with some talent...of which I have little unfortunately.

I was talking with a friend about motorcycles, and how controlling a bike is no more difficult than the controls of most video games. Then I starting thinking of a controller setup emulating the bike controls on a controller. It could be seriously cool. I'll have to look into that one a little. A "Cowboy Bebop-Swordfish space dogfight" kinda thing might be seriously fun.

Anyway...If anyone does pull any of this shit together LET ME KNOW! I don't need credit, just let me friggin play! lol.