This press release offers details on plans to offer access to the beta version of Guild Wars on a monthly basis beginning in October, though unlike the prior "E3 for Everyone" event, this looks like it will only be open to those who pre-order ArenaNet's MMORPG beginning in September:

Bellevue, WASH., August 9, 2004 - ArenaNet™, creators of the highly anticipated online role-playing game Guild Wars™, and NCsoft® the world’s leading developer and publisher of online computer games, today announced that they will host a World Preview Event October 29-31, officially kicking off the game’s beta period. During the World Preview Event game players from around the world will be invited to play Guild Wars and enjoy exciting cooperative quests, challenging competitive play and robust guild support.

Guild Wars will be available for pre-order in September. Subsequent monthly beta events will allow gamers who purchased the pre-order product to return to play the Guild Wars beta during the first weekend of each month.