Fans can finally do battle with Deathwing, as they travel back in time to the War of the Ancients. We work with orc leader Thrall and the other Dragon Aspects to finish Deathwing.
There's tons of other changes made but its focus has been granting closure to those who've picked up Cataclysm. The Raid Finder can help players "quickly and easily form a pick-up raid".
Check out the official Blizzardfor 4.3.0, the Hour of Twilight.