Like I mentioned in the audition thread,
IMO the most debut ready are the girls from the KSS Unit(Kirara, Kanami, Nanami and Madoka)
Next would be Shion, Natsume, Ruli and Ichigo.
Shion being the only one picked also tells me a new group is on the horizon.
As for Yulia, I think they are grooming her for MM so I don't think she would be part of a new group.