New hairstyle?
“Don’t be discouraged, darling. You can’t help being inferior.”
I’ll guess it’s unlikely we’ll see that for player use, given the BL Trader fez hats we also don’t get, and all the many NPC garments never implemented for players.
That’s the hat of the Cook’s outfit for Sylvari if I remember right.
Here’s the Cook’s Outfit: http://wiki.guildwars2.com/wiki/File:Cook%27s_Outfit_sylvari_male_front.jpg
Not sure it is the same, but it does look more like a hat than hair to me.