I could've sworn I read somewhere that Reznor is doing the music, like he did with Quake which is really cool.
From the movie, I don't see what the fuss is all about. Looked alright, nothing too special when you compare with Q3.
Aside from that, i'm sure it'll be nice eye candy with little content, much like Q2 and the multi only Q3. Perfect for other game makers to kinda pick up the slack.