The one thing I take solace from when George goes off on one of these megalomaniac rants is that he is getting increasingly more defensive and subversive about Star Wars, which suggests that the pressure to release the OOT is growing and starting to bite into him a bit. I dare say that there are many people high up in the film industry that have mentioned it to him more than once. That combined with the constant stream of criticism on the internet has started to show signs of really wearing on him.
I still don't necessarily believe it will convince him to change his mind, but I do feel it's starting to become more of an issue for him than it has previously. He can't just simply wave his hand dismissively any more. When films like Blade Runner, Terminator 2, Avatar, Spider-man 2 etc. can have every version of them presented in the same Blu-ray set (even occasionally on the same disk) with minimal effort, George's claim that it's too hard to do it for Star Wars becomes more and more transparent. Compare the vitriol of the 2011 release to the 2004 release and you can see a massive jump in the level of backlash. That has to count for something in George's head, even if he himself won't admit it. Plus let's not forget that the OOT has in fact been released on every major format since home video started (except Blu-ray obviously). Granted, the DVD release was just a Laserdisc port, but non-the-less.