Guild Wars Eye of the North

Campaign Four (a.k.a. Chapter Four) is an upcoming stand-alone product ("Campaign") of the Guild Wars game series, a follow-up of Guild Wars Nightfall (Campaign Three).

No title has been announced so far.
 * Note: NCSoft has registered the domain names www.guildwarsutopia.com, .org, and .net in June 2006. However, despite rumors about this name, an ArenaNet representative has stated that this is "a project name for an unannounced project", not intended as the name of a future product. 
 * Recently, NCSoft has also registered eyeofthenorth.org, but whether or not this is to be the next campaign has yet to be determined, despite rampant speculation about the name.

Release Date
The game is scheduled for release in 2007, but no precise date has been officially announced.

Only dates that are officially announced by ArenaNet will be posted here!

However, for personal estimation of the release date, the following facts may be provide some starting points:
 * ArenaNet have stated that they plan to release two campaigns per year, released on staggered six month cycles. Factions (campaign 2) was released April 28, 2006 and Nightfall (campaign 3) was released on October 27th, 2006.
 * According to Jeff Strain the development time for each campaign is roughly 1 year and that ArenaNet now creates two campaigns at a time on overlapping schedules.
 * During E3 2006 ArenaNet confirmed that developement on Campaign 4 was well underway.
 * ArenaNet sent out the first wave of alpha test invitation emails on January 9th . On December 12th Gaile Gray stated that testing (from the context, implicitly out of house testing) for campaign 4 has not started.
 * An NCSoft press release from February 7th, 2007 states that "... the company anticipates the launching of Tabula Rasa and a new major update to the Guild Wars franchise in the latter half of 2007", which may refer to the next campaign.

From official sites

 * NCSoft.com - NCsoft records KRW 338.7 billion in sales in 2006 (mentions upcoming "major update to the Guild Wars franchise")

From other sites

 * Guild Wars Guru - 03/01 Gaile Gray: PC Gamer Announces C4 info for next month!
 * Gamespot - Utopia not to be used as a product name - Jan 18, 2007
 * GameSpy Guild Wars Campaigns 3 and 4 -- development is underway