Rock Band has a sequel in the making, or so this teasing piece of art would have us believe, a tipster sent the concept works into Joystiq.
The survey, from Listen Research, asked which of the two would most attract your attention in the shop and which is a "better fit" to the games description. So rock 'n' roll!
Rock Band should already be expected to have quite the lifespan with intended DLC to be released but Harmonix and EA don't want to stay still for long it seems.
Here's the survey excerpt:
"Rock Band 2 lets you and your friends play as a virtual 4-person band, in person or online, to rock out to some of the biggest rock anthems from the 60s, 70s, 80s, 90s and 2000s. Rock Band 2 will be a full featured sequel, similar to full featured sequels you see released by other big video game franchises, such as Need for Speed, Devil May Cry, Final Fantasy, Call of Duty, or Halo. In the music/rhythm genre, it is similar to the feature jumps made from Guitar Hero I to Guitar Hero II or Guitar Hero II to Guitar Hero III."