The world revamp dream will never die!
Will you provide some example or will argue about facts again? Because SL public testing started after 8.3 (8.3.7 wasn't even minor content patch, it changed some technical stuff in preparation for SL and launched ~2.5 months before pre-patch), BfA after 7.3.5, Legion after 6.2.3, WoD after 5.4.7, MoP after 4.3.3.
Yeah I don't see the alpha going up before the PTR goes down. And I have to admit I am not following the PTR that much, what has been tested so far? I haven't seen anything about them actually testing the affix, the retuned M+ dungeons (the WoD ones were never even M+) or the Fated mechanics. All those would need testing (and that is probably the only time they may get some actual testing on cross faction).
This habit of having the last word of some users never gets old.:-)