Actually, the time between the PT and the OT is gonna be covered by the live-action series .... if that ever happens. I'm sure it eventually will happen, LFL has to keep the franchise going somehow.

I really hope we get the original versions of THX and Graffiti on blu some day. Unless there's some sort of agreement with Lucas we don't know about, he has no control over those movies. THX is Warner's and Graffiti is Uni's. THX is such a short movie that WB could very easily include both versions on a single, dual-layered blu-ray disc (with either version on its own layer) and still have enough room leftover for all of the extras from the 2-disc dvd. Universal could just use seamless branching for a nice, all-inclusive blu-ray of Graffiti.