While an avian race would be really awesome, some restrictions to keep in mind:
1) The race will be mainly humanoid, so no you won't get bird legs or taloned feet for simplicity in adjusting gear between races.
2) The race would NOT have large wings, these would be hard to model around and would indicate actual ability to fly - not something that they'd want to insinuate because flying is high level zones only and mount-based. Even if the new race COULD fly, they'd be restricted to Aether currents though and there would be irritation that the new race can fly without a mount and they'd want to too.
That being said, there are options to be more avian while being mainly human that would be unique and interesting, such as:
Feathered Eyelashes:
Feathered Ears:
Feathered accents on wrists or ankles:
MAYBE Small feathered wings and/or tail: