It will get here when Blizzard feels like it, which means our choice is being limited by whenever Blizzard feels like it. That's really the whole point of the thread. It's about not being satisfied by what Blizzard feels like doing. That's why this thread/topic still exists well after the WoD debacle.
I don't even care about flight all that much and I can recognize that what Blizzard is doing in terms of communicating their plans on flight is bullshit. They're doing exactly what they did in WoD, except this time they didn't say "No flying permanently" and trigger the community into firing back. They dodged the bullet in Legion because 'as horrible as it is, it's all a part of the plan'.