halo deffinatly shouldnt considering they didnt chage anything in the last game and there are games on the xbox that are better.
The companies that worked on Halo, (Microsoft and Bungie.) arn't working together anymore, so if there was a sequel to Halo, it wouldn't be called Halo.
Enchanted Arms, Portal, Warcraft III Expansion, Oblivion, Assassins Creed, Mortor Storm, Half-Life Blueshift, Sonny, Kingdom Hearts, Guitar Hero, Knights of The Old Republic, PGR, Pac man, and many others.