The Warhammer Online development team has posted a notice on the official site that states that the game will cease operations on December 18th. The official notice is quite terse but a personal reflection post by Producer Carrie Gouskos is also available on the site.
Greetings Warhammer Online Subscribers,
We here at Mythic have built an amazing relationship working with Games Workshop creating and running Warhammer Online: Age of Reckoning over the last 8 years. Unfortunately, as with all licensing deals they do eventually come to end and on December 18th, 2013 we will no longer be operating Warhammer Online. As such we will no longer be selling 3 month game time codes or have the ability to auto renew your accounts for 3 months as of September 18th, 2013. If you would like to read some additional thoughts from one of WAR’s Producer please check out http://www.warhammeronline.com/. From all of us here at Mythic we thank you again for your dedication and support over the last five years.
If you have any questions please feel free contact us via email at firstname.lastname@example.org.
Read Gouskos's letter here.