I get the feeling that we are getting both a tank and a healer next expansion.

They just added 2 new DPS classes, and we know they aren't adding 3 or more jobs at once anymore after HW. It makes sense to me that we'd get a tank and healer then. I haven't played any other FF games, but it sounds as though geomancer and dancer could both be seen as healers and both could feasibly be added, especially geomancer after all the references.

I do like the idea of a support role on its own but I've yet to see an MMO manage it reasonably.