Leader Change in After School

Following the rumours about Nana being After School's new leader, an anonymous source within Pledis Entertainment revealed that it's actually Jung Ah who's currently considered to become the new leader.

However, neither the source nor Pledis Entertainment itself confirmed who will take over Kahi's leader position, as discussions on this topic are still going on. The source guessed, "Although there is still discussion going on, unless something happens, Jung Ah, as the oldest unni, will be promoting from the leader position."

Meanwhile, After School prepares its comeback with "Flashback" for 21st June. (Source)
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Some days ago I told you that Kahi will leave After School. (Post)
So, now there's a discussion going on about who will be the next leader for After School. It looks like, it will be Jung Ah, but nothing is confirmed.
But it looks quite logical why she will be the new leader. She will be the oldest when Kahi leaves.