WoW Petopia Community

Haven't seen this stated anywhere, but Blizz has stated that the Grove Warden (the flying dream moose from a quest that drops off Heroic/Mythic Archimonde in Hellfire Citadel) will continue to be available during the Legion pre-expansion patch. You will have until the actual expansion launch on August 30 to get it.

Source: http://www.mmo-champion.com/content/581 ... early-Here

Wish that was the case for CMs been rushing trying to get it last minute because I'm a dirty procrastinator.