Well the Skyclaw was around for a while, but they said they couldn't get it to work, so they were going to give engineers something else, and now we have the sky golem.
Thing is the skyclaw is available on the arena tournament realm, and it works there, i got it showing up in my mount list tonight, so I'm not sure if the skyclaw is still coming aswell as the sky golem.
Picture of the skyclaw thats available on the tournie realm at the moment.