In the past Blizzard has occasionally given out battle pets as gifts to players for logging in during the game's anniversary period. Previous anniversary rewards have included the Baby Blizzard Bear and Onyxian Whelpling. This year is an extra-special landmark: the 10th anniversary of WoW, and the 20th of the Warcraft franchise as a whole. As a result, we seem to be getting an extra-special battle pet, a humanoid called Hogs, who bears a strangely-similar aesthetic to that legend of lowbie leveling: Hogger.
I love the choice of a Hogger tribute for the 10th anniversary pet. It's such a community touchstone for those of us who have played the game--if you've at any point leveled a human character, even to 10 or so, you've probably encountered Hogger. That may not be all of us, but it's many of us, and it's a great choice for the game's first decade of life. Here's to Hogs!