Apocatastasis needs to come back, full stop.
If Erase came back, I'd want it to affect everything Esuna does, and preferably usable on ourselves.
Other than that, I'd like to see Manaward taken off of BLM and made in a Role action.

The Devs are going for heavier emphasis on self-management of MP, but if that winds up crashing and burning (which it will likely if they don't increase the amount of MP you have after being raised), then I can see casters getting Manashift back.