Steven wrote a great article on this subject--and he let it deviate into even more pressing issues--but Vince Moore's was also a good call for more black badness (or something like that.)
I would love to see more black superheroes, and not just as team members (tokens) but solo heroes with their own adventures. However, now that I think about it, it would be great to have more black supervillains (also not on teams as tokens) to menace everybody. I don't know that I need a black Dr. Doom, and I really don't need or want someone whose villainy is defined by his blackness, but to have someone be a foul menace who happens to be black? That would be great!