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.
I feel like this is the main reason they’ve been homogenizing tanks/healers and unifying burst timers. They feel compelled to add multiple new jobs every expansion, and this makes it much simpler to design and balance them. That said, I’d prefer seeing few unique jobs over many samey ones.