Ziz said:

I thought I read that he won't make any new changes but he will undo at least one - changing the torture droid's new "mini-saber" back into a standard needle.

I'm not sure that it was change it BACK...or just CHANGE it. And he's confirmed a few changes. Ben's hut won't be the original, nor the special edition....it will be an all new matte. He's going to try to rework the editing so that 3P0's reaction to R2 getting shot is back to what it was, and he wants that last iconic shot of Tarkin back where it belongs just before the DS blows up. Theres prob a few others but I can't recall them at the moment (the SW:R Wordpress site has them listed)