I think that's the point, really. It would be a wake up call to him. Lucas used to be all about film preservation, I really don't know what's gotten into him. It's like he's gotten drunk off of his power.
If a good quality print showed up under the table, after Lucas and 20th Century Fox both said the original was "lost" and the laserdiscs were "all the had"....they'd look like liars. Rightfully so. The only way they could redeem themselves is show off how amazing they are by releasing an official restored version of all three films...they'd turn into a big "look how amazing we are, this is the best restoration ever, THX, George Lucas is awesome" just like they did in 1997 (albeit with all the crap added on that time).
George Lucas is avoiding Blu-Ray like the plague right now. I'm not exactly sure why. Well, I am sure why. He's avoiding it so he'll be the last one to jump on board, so everyone will have waited, and everyone has adopted the new format. Then he'll release everything Lucasfilm on Blu-Ray. If that's not what he's waiting for I don't know what.
Of course, if all they do is ignore it and look the other way....we'll still have a good HD print of it, and can then proceed with the other two films at some point in the future.