Mystery Character is New to Fighters
Capcom has revealed more details about the fifth mystery character to be added to Ultra Street Fighter IV's roster. While the character is a character who already exists outside the SF franchise, this will be the first time (s)he will be appearing in a fighting game.
With that said, this removes a lot of potential characters from the roster, so speculators are sure to have fun trying to narrow down which characters would be both possible and appropriate entries. Personally, I'm hoping for something very left field to add yet another diverse fighting style to the mix.