I wouldn't pay much attention to the number of girls that were seen yesterday tbh. The fans outside the building were just lucky they were there at the right time, that's all. I assume they go there to meet the producers or the physical trainers @ the gym, who knows? I do think they do most of the practicing somewhere else though. Even Winner, who already debuted, practice at the training center these days. YG building isn't that big. lol
A selca from Jinny hasn't leaked in months now so we really can't tell if she's still in the group or not. She's the girl coming out from YG a few days ago I'm pretty sure though.
I think the girl in red walking with Lisa a was Miyeon tbh.