Each Legion patch has been released exactly 77 days apart; Theories on 7.3+

Patch release dates...7.1.0 - 2016-10-257.1.5 - 2017-01-107.2.0 - 2017-03-287.2.5 - 2017-06-13 (Most likely, since ToS is released the 20th)Citation for ToS release; http://ift.tt/2ryYxE4 - 'Return to Karazhan' dungeon, 'Trial of Valor' raid7.1.5 - 'Nighthold' raid7.2.0 - 'Cathedral of Eternal Darkness' dungeon7.2.5 - 'Tomb of Sargeras' raidTime between patches7.1.0 - 7.1.5 - 77 days7.1.5 - 7.2.0 - 77 days7.2.0 - 7.2.5 - 77 daysFunny thing about the number 77; it always lands on the day it started it seems, leaving us with the day of Tuesday each time. (Derp, since it's divisible by 7. But still!)Therefore, we can assume (that the plan is, at the very least)...August 29th, 2017...7.3.0 ('Argus' instance + new zone)November 14th 2017... (shortly after Blizzcon, where 8.0 is probably announced given an expansion has been generally announced on odd number years, released on even number years.)7.3.5 ('Mac'Aree' or other Argus raid)If there is a 7.4, though I highly doubt it, it would, by this model, be released on January 30th, 2018.What do you all think? Reading into nothing, or do we now have 7.3 and 7.3.5's release dates?