I don't buy any of this stuff that the original version can't be restored b/c of the negatives. The original versions can be reconstructed. Use the best materials available - the YCM restoration, the separation masters, the IPs, George's Technicolor print, whatever. (And has anyone ever confirmed if the negatives for ESB and ROTJ were in as bad condition as the original? I've only ever actually heard reference to the negative for the first film being in that dismal condition...)

If they 8K scan the best materials, clean them up, and use George's prints as a reference to edit them together and properly time them (for example, taking the SE restoration and cutting in the original optical composites from an IP or George's print), we could have the originals in HD. It's not a question of whether they can, it's a question of whether they will.

(And even though I bet it's not going to happen, I'd love to see the pre-tweaked Indy films on Blu-ray also. Since the changes to those films were minor, it won't be anywhere nearly as bad if they were excluded, but still...)