This is a general announcement that we'll be taking down the NA Clan Wars server coinciding the release of the 8.3 update and will provide additional details tomorrow. That's because we'll be deploying a major update to the NA cluster, including an event that will usher in a brand-new region: North America.
We expect the downtime to take about a week, giving us enough time to make sure everything is deployed correctly and is working. We'll provide updates should this date get pushed back.
Thanks for your patience and we hope you're looking forward to battling over North America as much as we are.
Downtime began at 23:15 PST (07:15 UTC January 17) on January 16, 2012