I like catchy titles. In the last PTR build 4 new textures of Halloween masks have been added.
- 2 of them are for Goblins masks - Helm_Mask_Halloween_GoF and Helm_Mask_Halloween_GoM
- 2 of them are for Worgens masks - Helm_Mask_Halloween_WoF and Helm_Mask_Halloween_WoM
Even if the Goblin texture would make sense as an addition to the game, adding Worgens texture out of nowhere is definitely a sign that the 2 new races of the expansion will be the Worgens (most likely for the Alliance) and the Goblins.
I know that a lot of people will love to argue with that over hundreds of replies. I would just like to add that it usually takes a lot to make me post something on the front page and I don't think I've ever been wrong everytime I did. Hopefully Blizzard will react fast enough and add tons of new masks in the next build just to pretend that it was intended. (Suggestion: Pandarens please)