I think a better question is what songs from the past will they still play and what won't they. I think they'll always play In the End, Crawling, Faint, Numb and Breaking the Habit. I know Mike pretty much said they'll only play singles, but I hope they play songs they haven't played in a long time and stop playing some others. I for one hope they never play another piano version of a song again. They completely killed PMA, which was only good at Summer Sonic anyway.