This Guild Wars Press Release announces the Prerelease Bonus Pack for Guild Wars Nightfall, due to hit stores on September 15, 2006. What's a prerelease bonus pack you ask? Well so do we… It sounds like a pre-order dealie with some bonus in game content for the upcoming Guild Wars update:

August 1, 2006 (BELLEVUE, WA) — ArenaNet® and NCsoft® today announced a brand new retail package which will soon give Guild Wars® players their first look inside the exciting upcoming release, Guild Wars NightfallTM. The announcement comes on the heels of the Guild Wars Nightfall PVP Preview Event where players were able to create characters using the new Nightfall professions.

The Guild Wars Nightfall Prerelease Bonus Pack is expected to hit store shelves on September 15 and will feature:

Guild Wars "Play Now" key for a 10-hour/14-day trial* of Guild Wars PropheciesTM and Guild Wars FactionsTM.
Guild Wars Nightfall Bonus Key, providing one additional character slot for a Guild Wars Nightfall account, as well as two exclusive items for the new professions—a Firey Sunspear of Shelter for the Paragon and an Icy Soulbreaker of Enchanting for the Dervish
Mini strategy guide, concept art, screenshots, in-game renders of characters and items, preview trailer, wallpapers, lore, quick reference card, music, and more!