I agree with Matt and Travis. We got plenty.
I don't see it being commercially viable to re-re-release the OT right now, or probably ever again, frankly. Unless it's on the 50th anniversary or something.
What would have been nice, though, was the long-rumored Saga boxset/doorstop, with all 6 films, both versions of the OT, and several hundred hours of extra features. But I guess they're going to wait for the Blu-ray release.