There is going to be a new Idolm@ster game called The Idolm@ster: One For All. In this game you can manage all of the 13 girls. Can't wait to run a Miki, Iori, Haruka team. Maybe it is time to get a ps3. Games are region free right?
edit: looks like a november 2 reveal date according to silliconera
sourceThe new game, entitled Idolm@ster: One For All, is a simulation title that lets players — who play the role of an artiste manager at a idol producer or artiste manager at a talent agency — manage any of the series’s 13 mainstay characters.
Not much else is known about the new game at this moment. According to @earlbox, who has managed to purchase an early copy of Famitsu magazine this week, a few screenshots from the new game were shared in the magazine, but the character modelling in these screens did not look very different from the type used in The Idolm@ster 2 on the PS3.
He also said that Idolm@ster: One For All, once purchased, can be activated from the free-to-play Idolm@ster Channel, and that a PV for the game will be shown at an Akabane event in the near future.
edit: looks like a november 2 reveal date according to silliconera