McCallum told everyone they were waiting to see which format would win. If one format didn't win, they were going to look at digital downloads. Well, Bluray has won. LFL hasn't said a thing. If it was that important to them, I'd expect some kind of announcement. Maybe we'll hear something at Comic-Con, but I don't have my hopes up.
There is no reason at all why Lucas can't work on remastering the OOT for Bluray while working on the Clone Wars at the same time. The TPM DVD was worked on at the same time as AOTC was filming. Let's not act like LFL is only capable of doing one thing at a time. All that has to be done is to hire the people necessary to get the job done. This of course assumes they have any intention of ever remastering the OOT in HD for Bluray. I don't believe they do.