Btw @Cinera , what do you think about Imu being related to Mihawk, i.e., Mihawk's mother/sister?
I am low key expecting Imu to be several hundred years old. Potentially as old as the Void Century/the formation of the World Government. They're too old to be related to Mihawk IMO.
I think I'm currently more partial to the Rayleigh and/or Shakky theory.