My wish for the last few years have been that they add Green Mage which would be a physical/magical melee dps with support magic and a hammer weapon. Could probably use scouting gear being a mage and need for mobility.
Most of the jobs I've seen mentioned being desired are already in the game for NPCs only (Beastmaster, Mimic, Geomancer, Onmyoji/Oracle, ...) or equipment related from lost civilisations (Viking, Onion Knight, ...). Viking may be a possibility if we go to a location in the north hinted to during the MSQ
Treasure Islands beyond the frozen waters of Blindfrost
but since there is equipment that is Viking related in HW, I doubt we'll get that as a job outside Warrior.