Eh I dunno why it couldn't be a dancer. The Corpse Brigade in Southern Thanalan are old members of the Ala Mhigan army and the enemies from there are Firedancers and Fistdancers. I forget the name for the sword bearers that show up in the one FATE in the zone, but again flagged as a somethingdancer. It's not that outlandish a notion that dancer is coming, since clearly it's tied to Ala Mhigo already.