This may be old news, and I can't recall seeing a link to it, but I just saw this website:

http://lucasfilm.com/thx-1138

Some interesting things are noted and presented, e.g. a behind the scenes picture I hadn't seen before:

Also, they feature a few quotes and informative pieces regarding the Director's Cut:

In an extensive restoration, THX 1138 was put through ILM's "digital intermediate" process. The film's original negative was scanned, digital color correction was applied, and a new digital master was created.

Nothing new here but I am hoping that the digital master will see another release by Disney. THX was part of the acquisition right?