Ok, so it has been confirmed that T. Hawk is going to be on Super Street Fighter IV. However, a new character, Juri was also confirmed. Capcom said that 10 Characters will be in Super Street Fighter IV:
From Super Street Fighter II: Dee Jay and T.Hawk
From Street Fighter Alpha: Guy, Cody, and Adon
From Street Fighter III: Makoto, Ibuki, and Dudley
New Characters: Juri and Hakan
the question is will be on DLC or just a Separate disk?