At the conclusion of the Summer Sale, the BFA, Legion, and WoD Digital Deluxe bundles were removed from the shop, as indicated by this post:
The World of Warcraft: Battle for Azeroth®, Legion™, and Warlords of Draenor® Digital Deluxe item bundles along with the special goodies for other Blizzard games included in these bundles will no longer be available for purchase following the conclusion of the Battle.net Summer Sale on July 11. The mounts and pets from these bundles will be available to purchase separately after July 11.
However, while the BFA and Legion mounts and pets have indeed appeared in the store, the WoD mount and pet have been removed entirely. Is this a bug or is this intentional? There is no indication that the WoD items would not be added.