Actually, I think there is a very good chance that the transfer they provide as a "bonus" feature will be utter garbage. There's that quote mentioned several times here about the quality being state of the art as of 1993. Well let's think about this for a minute:

1) Fact, GL regards the 2004 releases as canon.
2) Fact, these new releases are all about money.
3) Fact, the fan released LD transfers were painstakingly worked on by some very talented people.

I believe that the OT "bonus" tracks will definitely, perhaps purposefully, look very poor compared to the 2004 release tracks for two reasons:

1) GL wants it that way
2) They will not spend any money trying to get a good LD transfer.

So, my point is that we may already have better releases than what is coming from Lucasfilm in the fall.