I hope Yoshida doesn't give up on pet jobs and seeing the beastmasters in Hullbreaker Isle was interesting. They can be branched off Marauders (since they're maelstorm officers anyway) or a separate guild. They can have 1 tank pet for soloing, 1 melee pet and 1 range pet like summoners. if they're branched of marauders, they can have a trait that cancels enmity WS or transfer enmity to pet.