Even if I am Rii biased, I would love to see Maasa center~
While I do love Maasa, I find it highly unlikely due to the important nature of this single. In terms of line division, I'm expecting a Rii/Miyabi lead, considerable solos for Yurii and Momo, and then a couple lines for Chi, Maasa, and Captain.
I wouldn't be surprised by a Maasa lead for the second a-side, though. Chinami has gotten some considerable leads on some of the recent b-sides (Mou Kodomo Ja nai Watashi na no ni, and Sekai de Ichiban), so I figure it's Maasa's turn soon anyway. With the extra b-sides, it's even more likely!
I'd love to hear a Maasa/Captain co-lead song! I