How this managed to slip past us, we'll never know. Wednesday night, Kalgan (also known as Lead Game Designer Tom Chilton) hit the official forums to drop some news regarding rated battlegrounds in Cataclysm.
BLUE POST:
KalganWe're currently expecting both normal and rated battlegrounds to be cross-battlegroup (within a region) for the launch of Cataclysm. So, players queueing from anywhere in North America (for example) could play vs players on any North American battlegroup, etc. This applies to all regions, not just North America.
source
Yes, battlegrounds will no longer be locked to battlegroups in the coming expansion. The pool of players to pull from is going to grow dramatically with this change, which can only be a good thing. It also has interesting implications for PvE content. Cross-realm battlegrounds came long before cross-realm 5-mans via the dungeon finder, so cross-battlegroup battlegrounds could potentially suggest that the dungeon finder will pull from the entire region eventually as well. With the Battle.net revamp and the incoming Real ID features, what realm we play on may become less and less relevant for anything but the guild we're in and which faction holds Tol Barad.
Also the fact that we are now able to do rated battlegrounds is a massive step forward for WoW more rewards by doing them and we can somewhat get a really tactical and advanced game rather then a boring clueless pug.
Posted on Thursday, 2nd December 2010