Karin is the core of Juice=Juice, and the trademark already established by the fans since the group formation. I guess management have to think carefully to let Karin go from JJ.

Ok, Tomoko is almost 25 which is the time limit to be an idol, but I think saying Karin is about to graduate is just a speculation like we can also speculate that Ayano becoming the sub-leader over Murota and Moe is a sign of graduation of those two (also none of them have been announced as sub-leaders after Kana graduation). I personally don’t want to believe those popular young girls are leaving this early.
Solist would be the second-worst scenario after joining Tsubaki considering the rage she would suffer from Japanese Wota.

Yeah, it’s six of one/half a dozen of the other for me, but I lean toward J=J just because I think they’re going to lose more members over the next couple of years than Angerme. I’ll be happy if she ends up in either, though. Just, for the love of God, do not make her a soloist.