I guess we'll know for sure when the game comes out, but I find the detail of the iM@S2 gameplay confusing XD
It might sound pretty obvious, but I do wonder how the 5-idol units work, as in...if you can really produce an actual 5-idol unit. From the "guest" screen, it looks like you can pick any 765Pro idol to be a guest, not just RK, which makes me wonder. Did they make it so we can only produce 3-idol units and then save everything else (solo, duo, quintets) solely for the concerts?