John Williams did a fantastic job with the prequels, and so I’m happy to leave the music alone for the most part. Even if there are a few things I’d have liked to do, it’s prohibitively difficult to pull off.
I’m not so sure the plot point of having Padme survive Episode III will be readily contradicted in future films. In order to contradict it, they would have to be very specific. One could say Vader killed Padme, which is true enough because she eventually succumbs to her injuries. One could talk of them taking Leia to live on Alderaan as Bail’s daughter, which would also be true enough. They would have to specifically say or allude that she died in childbirth to pose a problem. They could allude to Leia’s uncanny ability to remember people or see visions, and that wouldn’t even be a problem, either.
I’m sure there’s probably already been a book or comic or something from the new EU that contradicts what I’ve done in my edit. That’s okay; anyone making an edit their go-to version will need to adjust how they filter these details out. I’d be more concerned with films contradicting it, especially the “saga” films. But I don’t really see that happening, since again, it would need to be very specific. And why would a future film feel the need to allude to it in such a specific way, when ROTJ so blatantly contradicts it? I would imagine they would allude to the events in a vague enough way to not remind people of the contradiction. I could certainly be wrong, but I don’t see why the saga films especially would need to go back to Padme dying in childbirth.