Ever since the RBN came out, I've been hoping that someone would want to do the entire Year Zero album (sans Capital G of course), but I've never seen any talk about it. The stems of the song are easy to find, they're included on the second disc of "Y34RZ3R0R3M1X3D". I know many of the songs would be a great addition into Rock Band, including Survivalism. If we can't do Year Zero for some reason, such as Interscope denying us the chance, The Slip could work as well, seeing as Trent personally released it.
I would have tried to work on this myself, but I'm not in a position to be shelling out the money required to join the XNA Creator Club.