The mods for Aither's comments don't seem to like to include comments with too much English in them. Once Misaki asked a question in English, fairly obviously intending for people to respond in English, and I wrote a couple lines in English and mine didn't get accepted! I think this is the case with a lot of idol blogs, but I don't particularly care to test it out. lol
As for your questions, I would like answers as well, but I think all we will get is hints. I hope very much to see all of the Aither girls in idol groups again someday, but I worry that they may be scared of entering another group now if they were treated like Yuuka was. I am optimistic that they will try again, but I can't help but worry a little... Only time will tell now.
Honestly, I was kind of relieved when they announced that they would be disbanding, as it gave a sense of finality. Things weren't up in the air anymore, and we now know when it'll happen. It makes me sad that the date is approaching so quickly, though...