People have been talking about whether Lucas' changes are ones to put in things he wanted to do in the beginning but couldn't, or if it is just an excuse to add things to tie them to the prequels. Honestly, I think he's been doing both. The Cloud City stuff isn't in any way trying to tie it to the PT, and was done before the PT was even up. And with the way Cloud City was spoken of by the characters I think it was originally meant to be more majestic looking. The giant lizard things on Tatooine that some of the Stormtroopers ride on (which I thought were in some of the concept art for A NEW HOPE, please correct me if I'm wrong on that), as well as some other things I can't think of off the top of my head that would go into that category. And then there's things that clearly are just there to tie it to the PT. Including the Dug walking into Jabba's palace, the addition of PT planets celebrating to the end of ROTJ, etc. As I said, I don't think his changes were motivated by one factor. But on the actual topic, I really don't know. I've had mixed feelings about the changes, which I've said a few times already on these boards. There are some I think are legitimately good, ones that are unnecessary but don't really hurt the films, and ones I don't like. I'm really on the fence with this as I do think there is legitimacy to both sides of the argument. I do think George should have the original versions available though for those who want them.