I'm surprised it took this long for a tip to come in to us about this: the final gate in Sunwell Plateau is open today on the North American realms. This means all the raiding guilds who can down M'uru now have a chance to test their skills against Kil'jaeden, boss of the Burning Legion and, more than likely, the final baddie of The Burning Crusade. How long until we see the world-first Kil'jaeden kill? The gates should probably open for the European realms tomorrow, which is their maintenance day.
Not much is known for sure about the fight, since nobody's actually done it yet -- the PTR testers of patch 2.4 didn't manage to down M'uru, and if they had the gates probably wouldn't have been open -- but we do have some pretty solid speculation on what raiders might be rewarded with when they eventually do manage to drop the guy. And yes, I am very happy that I get to use that image of KJ in a top hat again.