Xande seems to do well for a Mage Tank. Could easily pull idea's from there. Or throw a curveball with RDM and make it a Tank.

Plus a lot of people have wanted Dancer for a while and what better way for a physical healer to enter the fray then Dancer?

Or are you really insinuating that the Dev team is running stagnant on idea's for job classes and will remain incompetent and utterly rely on Melee classes to make up 80% of all party composition? Which currently is the case.