11 new pets this time around. You read that right. ELEVEN. Most of which are the same pet, just recolored. Doesn't bother me, though. :P
Instead of text, let's just throw a bunch of images of the new pets out there.
It looks like the Ravager Spawnling was renamed to Black Ravager Hatchling, and a few of its brothers and sisters were added. The Ravager Wasps are a nice addition, and I love that they're available in multiple colors. Both the hatchlings and wasps are currently listed as "Drop: Draenor" in the Pet Journal.
Sky-Bo is another engineering pet (BoP), and the Runtish Gronnling has a unique source, "Drop: Your Attitude".
The Grovestrider Hatchling received yet another update and looks a bit like a brown variation of the Dread Hatchling.
I have to admit that I like this version better than the previous two. With "strider" in its name, it's only appropriate that it's a winged, flightless bird right? Just my opinion. :P