Elemental wheel in this game was removed after 1.0 - they said it's not coming back. Players will not do elemental damage, so green mage ideas are kind of a bust.

They also said they aren't adding a "support" role to the DF anytime soon, so It would just be a dps, healer or tank. Any support ability will be the regeneration of TP/MP or the reduction of skillspeed/spellspeed. That is all that is currently allowed under the structure of the design of the combat system in this MMO.