Another EU guild, Curse, has been making significant progress in the Hyjal event on the PTR, going as far as the supposed final boss, Archimonde, with GM supervision and support. The fourth boss, a pit lord known as Azgalor, dropped two tier 6 glove tokens, marking the first example of tier 6 on the PTR so far. For more information about the encounter, including pictures of all the boss fights up to and including Archimonde, see Curse's post on the World of Raid forums here.