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.

Content
Not much is known about a theme or new content so far.

Release Date
A release date has not 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.
 * According to Jeff Strain the development time for each campaign is roughly 1 year (source).
 * Given the above information, it will likely be released on April 28, 2007.

From official sites

 * none so far

From other sites

 * GameSpy Guild Wars -- development is underway