To be honest I personally would not want wings in this game the mechanics of the wings and flying where awkward as hell in Aion and if it was introduced here I would most likely quit the game.

Don't get me wrong I love all pretty asphetics but wings are just a huge pain in the backside and the poor design team would have to rework the entirity of eorzea so people can fly around the areas with ie clipping through the ground or breaking through the skybox *shivers*.