Lucas has gone quite mad, he's just as much of a megalomaniac as Palpatine. I could just imagine him, preparing the new revisions and quoting Vader, "there'll be no-one to stop us this time!" Which isn't too far from the reality, there really is no-one to challenge his misguided decisions.
When I watched the South Park episode, Free Hat, I laughed at the idea of ROTJ with the entire cast replaced by Ewoks. Now, it seems a distinct possibility. The fanboys will argue that seeing as he owns the copyrights, Lucas is entitled to make any alterations he sees fit. That's correct but it doesn't mean I have to watch or pay for them.