Like Green Day Rock Band, or Guitar Hero: Metallica, which band should get their own game. One i was thinking of would not be band specific but more genre specidic like Guitar Hero: Rock the 80's. It would be called Rock Band: Warped and would feautre alot of bands from the Warped tour type of scene. Pop Punk/ Hardcore or anything.
I would also love for Nirvana to get their own game, but with only 3 albums the source material is limited. A Linkin Park game could work, I could see it happening too, but I would not be Overjoyed about it.