Blizzard recently released a new beta build with more battle pets included.
Blue Axebeak Hatchling
Brown Axebeak Hatchling
Red Axebeak Hatchling
Syd the Squid
Mystical Spring Bouquet (vanity pet only)
I’m eagerly looking forward to the new battle pets, though it does seem like Blizzard is implementing a lot of new Flying type pets. While I’m quite happy with any new pets, I would really enjoy more new Undead, Humanoid, Magic, Mechanical, and Dragonkin pets.