Elden

But she decided to stay and help lily vegapunk to heal her father in elbaff?

But quite unsure for the future, becoz elbaff's arc in still on with god valley flashback.

It shall be imu the last villain to face becoz he or she is a person from the past.

And blackbeard shall be next villain after elbaf arc, becoz garp is held captive in hachinosu.