Foster won't headline but they could be a sub.
I really think Pearl Jam's in the bag due to their new album AND the 2013 20th anniversary thing.
I hear a lot of "U2 is too big"...why not "Rolling Stones is too big"? Both are huge bands but to me the Stones just seem MASSIVE, and they haven't toured in a LONG time. U2 just finished the 360 tour. Like someone said about a Zeppelin "reunion" - everyone would be on the fields just for the Stones alone. (To clarify, as long as I can see the Stones elsewhere I would prefer they NOT do Coachella.)