The December 2012 Standard arena rotation is now online. As always, on the first Monday of each month, id software will be cycling the Standard arena pool. Rather than only having access to the same standard arenas day in and day out, each month they will now feature 21 arenas selected as playable for Standard-level matches.

Newly released arenas will remain exclusive for at least three months, but every other arena is eligible to be included in the cycle.

Standard Map Pool:
Start date: Dec. 3, 2012
End date: Jan. 7, 2013


Source: http://www.quakelive.com/forum/showthread.php...d-Rotation