There's an interesting thread over at the official forums for World of Warcraft regarding mounts. One player brought the topic up and asked whether Elekk War mounts will be available in the future.

Elekk, for those who are not aware, is a species of large elephant-like creatures that the Draenei usually use as mounts. Blizzard's forum moderator Bornakk was able to pick up the thread and revealed that Blizzard will be making the said mount as a PvP reward in a future patch.

The same will be done, the blue poster continued, to the Chocobo-like Hawkstrider. Bornakk further explained that the latter will not be available to Taurens:

For clarification, as Taurens can't use the in-game Hawkstriders, I would not expect them to be able to use the PvP version. This has not been finalized though and we will have to wait for the mount to be implemented for further details.