Have yet to play the new expansion, but...
This is not negative fueled, I just had a little dream that they made the horses a bit more in their world, than just a horse.
Maybe some old school unicorns, with tails like lions, instead of horse tails, or give them small horns, floppy ears, why not fur, why not have them have deer hooves instead of horse hooves.
But I have dreamed of some sort of mounts since forever, so this is neat, can't wait to play it.