According to the latest issue of Famitsu, three characters from Street Fighter III are set to appear in Super Street Fighter IV. The characters in question are Makoto, Ibuku and boxing brit Dudley. If I ever have a kid, I am so naming him/her Dudley. It's an awesome name.
Anyway, these three join the other newcomers in Super Street Fighter IV, like T. Hawk, Dee Jay, Juri and Guy. Scratch Dudley, I'm going with Dee Jay.