I gave up on the OOT release for years, but once Disney bought the rights to SW, I figured it will eventually happen.
Now I know there is alot of legal wrangling that FOX owns the distribution rights to SW'77, but that can be worked out. FOX/Paramount both funded Titanic, and agreed that Paramount would get the Domestic Home Video Rights, while FOX would get the international home video because there was too much money to be made to keep delaying the release of the most popular movie at that time.
I could see Disney releasing the OOT in 2015 when Episode 7 comes out and you have Ford, Fisher and Hamill doing publicity for the new movie along with the release of the original versions to the public. Perfect Tie-in!