What’s about 1080p extended editions? For the prequel trilogy, the DVD deleted scenes are finished - as few others from BD - and should be not that hard to reinsert them in the movies… (I’m aware ADigitalMan did DVD versions, don’t know if HD versions exist.)

With the original trilogy, though, I think it’s another story… the deleted scenes quality - even the finished ones - is pretty low, and don’t know if it’s possible to restore them to be on par with HD versions; I remember vaguely a thread or two talking about this possibility.

Anyway, can’t say prequel trilogy + some added minutes of extended scenes could make them better; but, probably, couldn’t make them worse… or not?
At the contrary, the original should be left untouched - whatever could be defined as “untouched” about a trilogy “touched” at least three times!