The 2011 Blizzcon Presale's started, but unfortunately it doesn't look like there are any new pets in the PetStore. I was hoping for the Guardian Cub (either just an in-game code or code + plushie), but I guess I'll have to wait a bit more.
Anyway, there's one item that caught my eye: the Murloc Murhawk Designer Toy. It's a baby murloc toy that's based off of the in-game Mr. T inside joke. Sometimes I think the whole murloc pet theme is overdone, but I think a mohawk murloc companion would be pretty sweet! An idea for its idle animation? Throws mohawk grenades onto nearby critters or players, giving them temporary mohawks lol. :P