source: 365 Practice
the current trainee lineup consists of 6 trainees, Na Goeun (1999, PD48), Jang Eunseong (2000, MixNine), Mori Koyuki (2002), Cho Seoyoung (2002, former YG trainee), Lee Chaeyoung (2002), Park Sujin (2003). Lee Jieun (1997, PD48) had been featured up til a month ago but isn't in this for some reason, so may have left.