Also, that Movie Mezzanine article mentions that “A promotional reel from the digital restoration company features cleaned-up footage from Star Wars that looks nothing like the official Blu-ray release”. Does anyone have a link to this video?
UPDATE: Found it! https://vimeo.com/95919913
Then you’ll have fun reading this thread: http://originaltrilogy.com/topic/4K-restoration-on-Star-Wars/id/16857