One Piece is currently focusing heavily on the World Government, which is obvious, because in the Final Saga, the endgame villains are going to be the most important. At the same time, One Piece is currently building up towards the final war, and of course, Imu and the Elders are going to be the antagonists there. Currently, there are many mysteries in the story, particularly surrounding the character of Imu. Fans know that this particular individual shockingly spawned out of absolutely nowhere during the Reverie Arc, and was revealed to be the mastermind behind the World Government and their growing influence over the centuries.