groups I want to see (and have big chances to appear): Hime Kyun, Rio Hiiragi, Bump.y, Akishibu, Chu-Z, 7cm
groups I want to see (and have small chances to appear): Dempa Gumi, Team Shachihoko, Fairies, Asfi, Next Shojo Jiken, Gouhou Lolita Syndrome
groups I want to see (and are just pipe dreams): Perfume, SKE48, Momoiro Clover Z, some korean group
groups we'll most likely not see there (I would be shocked to see announced): H!P groups, Alice Juban... BiS
if I had to place a bet on someone unlikely to appear but a gut feeling tells me we'll see there: some ex-AKB soloist
since they already started 'spreading' the acts that get called, we may see almost anyone there, even some girl band or pop act (like Gatcharic Spin or Shiho Namba)