It may be a re-release of the original game, but we're still expecting big things from Halo: Anniversary when it releases later this year. After all, it's not just an HD port. Well, okay, it is. But it's an HD port with online co-op, Kinect voice command support, skull modifiers and 3D. That's a heck of a lot of upgraded material for a $40 game.
Obviously, a lot of work went into updating Halo, and you can get a lot of info on the process in the video below. Even if you're not planning to pick up the game, it's still a fascinating look at how a team approaches the re-release of a beloved game.