The original negative is conformed to the Special Edition, which was not fully digitized until the DVD master was made. However, Lucasfilm likely stored the pieces of the negative they removed, and they have recently been archiving every single piece of film and audio they have. So in a sense, the original negative has been digitized, but it’s not assembled or restored.
Do you know what resolution the negatives were digitized in? i.e. 1080P?
Really hope Lucasfilm has digitized all their OT recordings in the highest quality available. Things like music and sound effects, etc.
The stuff they’ve been archiving recently is most likely 4k, but who knows.