A few Jobs from around the games that could be made into something...
Ranger from FFTA2, a Melee DPS that uses traps, and had the option to use potions to attack
If they want to make a Ranged Phys with cast times, just take both
Cannoneer and
Flintlock and combine them into one Job.
Fencer from Bravely Second, Melee DPS, could rework it's stances into being sort of mini-phases in the same way current SMN does.
Also, I have said in other threads about new job ideas... A Tank using a Gunshield that would be primarily ranged, while it wouldn't do much in majority of fights, but in fights where the boss actually doesn't move (in EW for such you have Zodiark, Endsinger, Zeromus, P7 and P10) that would allow the tank to position more freely.