While I like the idea of more options, I wouldn't want a race based loosely on another franchises races, as I feel it'd lose that final fantasy charm to it. I'd imagine, if they did do an avian based race, it'd be loosely based off a spinoff, a direct game (like Viera in the mainline) or a completely unique race. But, given that we already have bird like people in the form of the Ixal, I imagine if we were to get a bird race it'd be based off the already in universe Ixal.