#1 - Nov. 18, 2010, 3:07 p.m.
Blizzard Post
In patch 4.0.3, Wintergrasp queuing was changed so that each battle attempts to match the factions at a 1-to-1 ratio. This is the exact system being used for Tol Barad in Cataclysm. While we understand that this inflates queue times for factions that are vastly overpopulated on select realms, we prefer this system over using Tenacity. In addition, the new system at least encourages playing on a faction that's better balanced against the opposing faction. With the old Wintergrasp functionality, players were almost encouraged to be on an overpopulated faction, further contributing to realm balance issues.

That said, we'll review realms with significant faction imbalances on a case-by-case basis in the event we need to take further action.

Tol Barad preview:
http://eu.battle.net/wow/en/blog/970444#blog