I agree that dancer should be included as a Healer/support role in this game. I have not read over the OP's entire post or updates but I intend to as I would like them to be included in FF14. TBH I really wanted them to have a primary and off-hand weapons for this class. Men and women both could use fans/tambourines as primary could and the off-hand weapon could be female a sash of some kind and for men their off-hand weapon could be a staff (I'm think a metallic version of the Bo).

I thought that the dances in theory could be tweaked as per gender, where as most can be universal, depending what SE chooses to get the dances from. But They could get an ability similar to cleric stance, where their primary weapon would become secondary (off-hand weapon) with a damage increase.

I had alot of ideas for the way this Job could work, but had not gotten around to looking at mechanics etc and putting it down on paper.