Personally I would love a Corsair/Pirate themed job that uses a cutlass/pistol combo. Sort of an inverse Red Mage where you go melee to build up a gauge and then jump back to to a ranged burst. Also I don’t think we have enough Pirate aesthetics in the game at higher levels. I think it would also slot nicely into using Scouting gear alongside Ninja.
My bet is geomancer