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.
Personally, I really want a sword dancer class. It would have a similar playstyle to dancer but it would be a healer and you would stay mostly in melee range to shake things up for healers a bit.
In terms of design, it would have more of a Chinese / old Doman vibe. Lorewise, they could say that the class is connected to the dungeon 'The Swallow’s Compass".
Also, I want a scholar rework so bad. Parts of the scholar kit just don’t make sense together and the class is all over the place thematically.