World of Warcraft Patch 4.3 has hit the Public Test Realm, so you know the Wowhead team is busy datamining as much content as possible. Follow along with Wowhead's PTR post for all of the latest details, including spell changes, new items, maps and more. Here's an interesting discovery: You can dethrone a guildmaster of an inactive guild in 4.3!
As far as official news is concerned, Blizzard has released the initial version of the 4.3 PTR patch notes. Also, Lead Systems Designer Greg "Ghostcrawler" Street has posted the first part of his explanation of 4.3 balances changes. Check out the lengthy dev blog entry to learn about the changes coming to melee DPS, death knights, sruids, paladins, priests and shaman.