During the end of MoP we received 2 shop mounts, one was a Fey Dragon mount and the other was a Skyreaver, shortly after we received the Reaver mount in the WoD. all 3 mounts were actually assets used in the next expansion, then we got a Runesaber in the WoD which was quite similar to what the Nightborne mount looked like, which kinda made me think that it was actually an asset from early experimentation with the Nightborne concept art.
So this got me thinking, the new mount has a very interesting art, It's not like other dragons that exist in the game as it has avian features like feathers on the back of it's head. Do you think this mount hints at things that might come in the future? perhaps a new dragon aspect of sorts? I do like the distinct avian look of the species.