I'd like to see some mounts that incorporate actions that do something functional, like a leap (that's actually jump) or short blink. Or perhaps a few mounts that just have some different behaviors because they can, like one might expect from some Guild Wars 2 mounts (some drift, leap, float, control different like, or have speed little speed mini games in them). Although attention to making sure that their feature is not "passively 100% faster than other mounts" lol, it's for flavor but not for replacing all your other mounts.

Of course I'm not against non-functional things, like what we have (fake attacks).