none said:

Part 2 from:

http://www.thehdroom.com/news/Star-Wars-Blu-ray-Up-Close-at-LucasFilm-Part-2-of-3/9427

Some choice quotes:

Matthew also confirmed he found some things while going through the old master like comments in the production lines that he added as dialogue into A New Hope. He stopped short of telling us what those and other new audio and video changes made by Lucas were, so we'll have to all discover them the old fashioned way.

As a poke back at Lucas, Matthew said there were times he'd spent a ton of effort making something like it originally did during the theatrical presentation. Then George would come in and want to change it, and all the work would be for naught.

As with every previous iteration of Star Wars, there's going to be some backlash over the audio changes George has chosen to make – the full extent of which we don't know yet. Matthew loves and prefers the new Blu-ray mixes to the originals, citing the R2 canyon scene as an example. He's hoping we'll feel the same way.