First, the release date has been fixed to the 7th December (10 days before the movie actually).Tracklist has even "leaked" :
Tron: Legacy Soundtrack:
02 The Grid
03 The Son of Flynn
08 The Game Has Changed
10 Adagio For Tron
12 End of Line
15 Solar Sailer
17 Disc Wars
20 Flynn Lives
21 Tron Legacy (End Titles)
You can listen to the new track Derezzed if you haven't done already :
If you want more , there is some details here on Pitchfork and on Dazed where they made the cover (in 3d).
Also if you been on a island for some time maybe (maybe!) you still haven't see Daft Punk and Phoenix playing together at the Madison Square Garden :
Definitely 2010 is the year of the come back for Guy-Manuel de Homen Christo et Thomas Bangalter.Cant' wait for a 2011 Tron live tour!