Makes a lot of sense -- Tauren originally had Plainsrunning, and if you've ever made that jaunt through their starting area, you'll know just how many plains you have to run across (of course, they didn't actually get it until level 40, so it wouldn't have helped them much there anyway, but still -- it's a run). And while you can pretty quickly fly into TB from Orgrimmar, it wouldn't hurt to have another point of departure. Kisirani doesn't say where the zepp will go, but maybe a flght up to Northrend wouldn't be out of the question either.
Wow, we got all that from "Okay." Behold the power of Kisirani! Maybe it doesn't mean there's a zepp on the way, but if that's the case we'd be happy with just a cow-tapult.