Anyone remember how it took Star Wars AAAAAAAGES to come out on DVD - all because Lucas said he wanted to wait for a Hi-def format to come out before he released them. He only relented when it became blindingly obvious that DVD had kiled VHS stone dead and taken over as the dominant format.
Fast forward to now and we have a single hi-def format. One would expect that Lucas would be jumping for joy and be well-poised to release the ultimate Star Wars release that he'd wanted to, back when DVD was a mere infant. But no, the Bearded One seems content to leave us with the DVRAB for a while longer and hold off on releaing his baby in the format he originally said he was desperately waiting to release it on.
From what I've heard, he's intending to release them on Blu-Ray once the live-action Star Wars TV series is underway. You see, Lucas cannot have anyone but himself in charge of something even as simple as a hi-def re-release of a film that is already on the market in a bazillion other formats. Unlike the rest of the inductry, Lucas cannot pass this simple task off to one of his many employees to manage and therefore, we all have to wait until The Great Beard has finished with his current project, so he can get on with micro-managing the next.
So be ready for the Star Wars Blu-Ray release sometime in 2015 - follwoed shortly after by the prequels on Blu-Ray, a complete box set of all six films, a new remastered edition, the original theatrical releases and any number of other minor modifications he can dream up to sell the films again.
Of course, by them, we'll all be asking when Star Wars is coming out on super-hi-def and Lucas won't have the time to get around to that. Expect them sometime in 2150.