The only way that Blu-Ray will become a household standard by 2007 is if the PS3 costs under $500, which, at this point, does not look like it will. That will be the most affordable Blu-Ray player on the market at the time, when it eventually releases, and obviously only early adopters and hc gamers will get it.
My point is that there is no way in hell an HD Star Wars Saga boxset is coming out in 2007.