I think joohyun is new leader so one youngest for lightsum

she is the main dancer and leader vocalist so 2004 line but she has trained longest time than all the members (7 years)

Chowon and nayoung re known member with leadership in pd48

Quote from SooYoung

i think it'll be Chowon

she's the oldest i think

plus she have the leader skills

Joohyun was more a follower during The unit

Maybe i think chowon will focus on main vocal position..

I wonder Nayoung is main vocal and leader dancer in the group add ace of the group so big job ...