Pretty interesting so far. I'm thinking user-initiated quests (perhaps submitted for approval) would be a nice idea. I'm also thinking I should be getting some work done right now! Haha!
So far the obvious choices would be more character, teams (Daredevil, Avengers, Groo, haha). I'd love to see more with the creators, especially the earlier people like Eisner, Kubert, etc. Anything that will stump me for awhile, is going to be fun anyways.