And here's another player-run party: on July 27th, a couple of Hordies on Steamwheedle are planning a "Tribune of the Horde" RP event --
Sounds interesting -- we always love hearing about (and hopefully attending) events like this. If you're putting one on, feel free to tip us about it, and if you go, take lots of screenshots and send them back to us so we can see what players are up to in the realms.
Update: I never did understand RP -- the people running the Horde event emailed us to say that they're not looking to replace Thrall at all. Instead, they're convening a Tribune of the various Horde races to voice their concerns and working up a scroll to take to the Warchief himself -- they're working in complete concert with the current Horde, they just want to make sure the voices of the little people (and trolls, and Undead, and so on) are heard. Our apologies for the misunderstanding, especially for the suggestion that anyone was trying to take over from Thrall. For the Horde!