He's already stated plenty of times that he always intended Greedo to shoot first. <sarcasm>Amazingly enough they just couldn't get it to work while actually filming the scene.</sarcasm> So I have no doubt he may actually start saying other things as well.

It won't matter though. Only the hardcore fans are going to buy the next DVD release. Everyone else is going to be satisfied with the 04 set. Between that and all the existing publications that say the exact opposite of what he's starting to say and there's very little possibility of him being able to convince people that it was all planned out that way from the start.