One thing that bothers me with this. Gear sharing. Would dancer have its own unique gear set. Besides the fact I am not a fan of it not being able to share with the other healers. Do you envision your concept of dancer sharing gear with ninjas?

Also find the cross class wierd. Having a healer without access to stone skin and protection is odd. Means you can never have two heal one group, and if a full party got double dancer in duty finder they'd be at a substantial disadvantage. I think healers have resigned to forever have cross class of CNJ/THM. Not without the class having their own version of protection or swift cast.