Black Fox That's very traditional and simple looking

Turtles in murkmire

Cow just cause

If you go to Telvanni Peninsula and look between the Necrom Outskirts wayshrine and the Padomaic Crest wayshrine, there's a traveling merchant that walks back and forth. They have a following animal, like other merchants, and in this case it's a mount-sized Silt Strider or Silt Hopper called "Legs."

My hope is that this means we're finally going to get a Silt Strider mount.

I want a netch lol

In the "absolute nightmare to rig and animate well" department, but I'd love a giant viper mount. Preferably one of those winged cobalt sep adders since I love the winged sneks, and we already have winged mounts that don't fly, but something like a cool cobalt blue sea serpent would be great too. I just made a Maormer Arcanist (okay, technically Altmer, like most "playable Maormer"), and a snakey mount would be amazing and in keeping with their lore. Might be really hard to make it move in a way that doesn't cause motion sickness like bear mounts, though. Still, I can dream.

Would also love an actual unicorn mount that you unlock through quest gameplay (presumably Hircine-related), and preferably not under such ridiculous requirements as that Necrom nix-ox. We already know unicorns exist in TES. It would also be hilarious to see all the "what's next with these ridiculous ZOS mounts: a unicorn?!" crowd have to eat their words. I specify that you'd unlock it through gameplay because unicorns aren't exactly a common sight in Tamriel, and it makes sense that you'd have to do a little work to secure one. Though, really, the streets of ESO's cities are flooded with "rare" mounts and pets already, so one more shouldn't make any difference.

Wish we had something like alpacas or llamas in game. Those would be adorable and spitty mounts.

(Inb4 Ninja614 asks for a Lyris Titanborn mount again, haha)