I like to think that the Jobs roster of Final Fantasy 5 is a good source for new Jobs.

This means that we could still potentially see the following Jobs:
- Blue Mage
- Time Mage
- Mystic Knight
- Mime
- Beastmaster
- Geomancer
- Dancer
- Chemist
- Necromancer
- Cannoneer
- Oracle

Berserker would probably be excluded, seeing as that Job has been mostly integrated into the Warrior Job.