No-flyers usually forget to mention, that when flying was implemented - design of ground content also changed. And that, if we want to return back to Vanilla regarding to flying - we also need to return back to Vanilla's design of outdoor content. But Blizzard isn't going to do it. Things, like CRZ - will stay forever, cuz despite of still having sub fee, Wow has all signs of F2P MMO, such as having just one physical server hardware per 20 logical servers.