I think this whole "bonus material" crap is a test, and the way Lynne Hale's response is so carefully worded ("The 1993 Laserdisc masters represented the best source for providing the original versions as DVD bonus material"), leads me to believe that they will have new transfers done of the OOT as non-bonus material .
These DVDs will sell very well, and George Lucas is too greedy not to cash-in on selling us the OOT all over again, and he can't do that without new anamorphic transfers. His cash-cow is running out of milk and he doesn't have a whole hell of a lot left to sell us.