Description of the cult saddle series mount
Currently, players can gain the cult saddle through a series of character achievements such as "alliance elite" or "tribal elite". We're also looking at new ways that players can get cult saddles in the 8.1 revenge tide patch.
Note that the alpha azeroth season mount will not be added to the war mount quartermaster until sometime after the final PVP season of the expansion. Until then, the only way to get these mounts is to actively participate in the relevant PvP events.