The demand for the OOT has diminished, and dwindled to the point, where it's not even worth the bother of re-releasing it in any new formats.
Regardless of ownership rights, and privileges, and whatever Lucasfilm has to say about it.
Disney, won't have a option, and will never do a proper job with. Its just better to forget they even have anything to do with Star Wars, and move on with restoring the projects ourselves.
Just go to the Other Projects forum on this board, or any other, and you'll see endless complaints of Disney's handling of every project they have done. Yes, even Pixar Short films. (Not that we care about those).
Team Negative1