I saw and posted about most of those. I didn't notice the cat in Eversong, the blood beast, or the flying creature in the Void. The reptile cat/wolf thing is seen in another picture standing next to the new void hydra. I'm going to move my pics over to here:
I'm going to guess that we're going to get a Plant family or one similar to how Undead pets work.
Looks like there is either a new reptile or just another hydra in this image
Not likely to be tamable, but there are Void Jellies
New Hawkstrider model
The giant mushroom in the water is an animal. You can see the legs underneath the water. Like a fungus Brutosaur.
New Frog model
Faraway view of the new Dragonhawk. It has three pairs of wings, just like the mount does
Looks like the spider model from Shadowlands, but maybe a new color
New mana wyrm model based-off of the new electric eel from Undermine. A purple variant can be seen in the second image.
Got a closer view of the Hydra. It is a new model. There is also some sort of canine or feline animal next to it
Looks kind of like a giant raven, but different than what we currently have. Might be based off of the mount.
Another view of the pet that the Haranir hunter was with. Looks like a cross between an ottuk and a Salamanther
You can see its head sticking out of the water. It might be using the lapbug model.
Better view of the Plant Devilsaur
Also, the Ghostlands have largely been healed and are teeming with life.
The resolution isn't great with some of these images:
Seeing as we're getting a bunch of other plant animals, it is likely that we'll be getting Mandragoras, too. They are in one of the new zones. You can also see the new bird model, though not terribly well.
Another new mana wyrm. Blue variant
New model for Nalorakk. Probably won't be tamable, even on a different mob.
An up close view of the new mana wyrm
It looks like that mana ray/sporebat is a fungal dragonhawk
A new bat/gargoyle model
Could be a new gryphon model, based-off of the ones from the trading post
