@Niles: I doubt it. It's still to early. Also, it's a suicide route if they make a new game and not put the idols we're used to already in any form (ala Dearly Stars).
@TanStar: Though that's a possible theory, a more likely route from what I see is make another game that, like I said to Niles, make the experience like Dearly Stars. Since they're gonna be focusing on them, the veteran idols could appear as secondary characters like in DS. Gameplay? Well that deserves its own topic.
EDIT: Keep in mind that the backlash that happened involving Jupiter and Ryuuguu was because those were sudden. No one was expecting them to come as is and no time was allotted for the fanbase to not react negatively. Unlike here in Cinderella Girls (and also according to previous speculations), we had time to warm up to them-a year to be exact. And in that time, their popularity rose and Namco can play with them as their cards (pardon the pun) when making a new game.
They may show up in the future in a game. They may do it on the 3DS. They might do it on the Vita. Or elsewhere. Regardless, Namco is sure to use them without worry now.
