First, there are some changes to pet-related feats of strength. Deathy, Murkablo, Murky, The Marine and Tyrael's Hilt's feats of strength are all now account wide. It makes perfect sense that only one character has to have any of those pets for them all to get the achievement.
There are also two new achievements, one pet battle-related which is Pandaren Spirit Tamer, which requires you to defeat all the Pandaren spirits in battle, and awards you one of the Air, Earth, Fire and Water spirit pets. If you want to get the other three, they can be farmed from daily quests, such as Burning Pandaren Spirit.
Additionally, a raid achievement called And... It's Good! requires players to fly through the discs above the Engine of Nalak'sha in Mogu'shan Vaults on Normal or Heroic difficulty.
Our favorites of these are the Brawler's Guild ones, which include The First Rule of Fight Club. There's also the two Rabble Rabble Rabble achievements, which sound really interesting as it currently appears that players are portaling into the opposite faction's city. Dirty Fighter is also very interesting, it makes us wonder just exactly how one goes about playing dirty in the Brawler's Guild!
Mists of Pandaria is here! The level cap has been raised to 90, many players have returned to Azeroth, and pet battles are taking the world by storm. Keep an eye out for all of the latest news, and check out our comprehensive guide to Mists of Pandaria for everything you'll ever need to know.