In my opinion, the original Star Wars will only be released after George Lucas dies. Disney clearly wants the original versions to be released, but they will never have the guts to go against his wishes while he’s still alive. After he dies, they’ll probably still hold off the release for a few years in order to avoid seeming insensitive, but after a while they’ll release the original.
After dumping his final production Strange Magic and blowing off his ideas for the sequels, I have doubts that they are really that considerate of his wishes.