I'm not sure they're going to read this but the following would be nice :
- Making of Hill Valley (and adapting it to the various time periods)
- Making the characters (design, animation, likeness, that sort of thing)
- Making the Delorean (Someone mentioned this in another thread, would be cool)
- Making The Story arc (I supposed there's one throughout the game)
Also throw a couple of concept art in there... Would make a very nice making-of DVD.
And as I was writing this, I realized they probably did a documentary, judging that the mini-trailers/featurettes we've seen so far. So, it's probably already all planned
