I know the Ewoks have been mentioned a few times, I don't think my ultimate wish of Wookies instead of Ewoks will ever happen. But one of my hopes with RotJ: Revisited when Ady gets to it is that as he has said the Ewoks will be made more fearsome and there will be less E-wok action. Something that occurred to me the other day was in ESB - Obi-Wan says he can't do anything to help Luke if he goes to face Vader....
Which made me wonder, could Obi-Wan and Yoda help the Rebels on Endor... It does seem to me from Obi-Wans sentence in ESB that they would then be able to help in other circumstance i.e. Could Yoda appear to Chewie and tell him the Emperors plan? (As Chewie does know Yoda from (RotS or perhaps earlier).