The Dance Central 2 community may not have completed the Facebook application challenge yet, but that doesn't mean there isn't new content. Today Harmonix has announced all new details about upcoming unlockable content, as well as revealed the new crew. The new addition is the Icon Crew, and they look just like the little icons seen in the upper right hand corner while you you dance.
Two new other issues have been challenged, both of which will unlock old-school character outfits upon completion (from the silhouettes, my guess would be Emilia and Taye). Once 140 million total community calories are burned, the first unlockable outfit will be available; the second, after 140,000 community photos have been uploaded. Harmonix says we're 97 million calories and 90,000 photos in, so fire up that copy of DC2 and dance dance like it's the last last night of your life life.
Update: Unlock New Outfits And Crews For Dance Central 2 [Dance Central Blog]