When will world of Warcraft's Mist of Pandaria expansion pack come out?
The official release date is set for September 25, 2012.
On August 28, it is planned for patch 5.0 to hit. This patch is the pre-mop release, meaning it will contain all the talent changes, spell changes and other things like that. When MOP hits, it will release ALL changes and access to all new content and levels will be granted.