My sources at LFL have stated that we will see at least two returning characters from TPM: 1. Jabba the Hutt. Hopefully, they'll have the CGI perfected and he'll look better than he did in TPM. 2. Greedo. The young green kid that was fighting with Anakin in a deleted scene will be back. He's become a "shoot first, ask questions later" bounty hunter. GL has promised that his scene is sure to become a fan favorite. We can assume that we'll see more of Tatooine, since both of those characters were seen there. No word on whether we'll see more of Watto, Kitster, the two-headed announcer, or pod racing. We can only hope.