Welcome to Patch 7.2!
Patch 7.2 is here and brings a hoard of new mounts, including an exciting variety of new class mounts. The class mounts will take approximately 11 weeks to achieve from this date, with order hall quest gating. See our Patch 7.2 Mount Summary for more info.
Armory update issues...
A small number of mounts (approx. 9) are still missing from the official Armory and so require manual updates to your collections. These include the Felsaber, Chauffeured Mechano-Hog and Acherus Deathcharger, as well as six old and retired mounts from Vanilla. Sadly there's nothing more we can do until Blizzard adds them. See the forum thread for more information.