I think the problem with things like this is EVERYONE wants their favorite mount to fly, be in reasonable or not. One such idea I've seen circling the forums is flying WAR bear mount. That's so dumb to even think about but the fact is, people don't like change. We all have our favorite mounts and unfortunately, not all of them will fly. I'm surprised someone hasn't asked for the Fenrir or Turtle mount to fly cause it's so expensive to get with MGP, they should keep them relevant even in flying zones. :s