User blog comment:Yanxa/Concerns about ME3 after playing the demo.../@comment-2045634-20120220201614/@comment-1691295-20120222113134

Nonsense. The demo files include heaps of cruft from stuff not in the demo itself. There is no clear attempt to cut down the game to save download time.

The content in the demo is, apart from bugs, pretty much final. The opening is how the game will open. It's the same opening that's being demoed everywhere else, and when they're doing press demos they aren't trying to save download time.