I read (don't know if it is true) 4 or 5 characters will be coming back. Antonio being one, and don't know the others. I read Whitney would not be one coming back.
However, I read all the old cast members (except for 5) will be coming back for the finale. I was surprised they named Spike as one not coming back since he was a regular. I guess something happened to his part after directTV cancelled.
As I said, I have read these things, but don't know how much is true.