Limited edition

According to Gamestop, the limited edition ships 17 October 2006 and has a price of $59.99.

United States
Obsidian has stated that -- unlike other countries with two versions -- there only be one version of the limited edition released in the United States. 

Australia
According to Games Warehouse Australia, the "Collectors Edition" includes the following:

New Zealand
The Gamesman in New Zealand has more: Oddly enough, community member Hannes665 points out that the map image above matches an ancient map of Iceland. 

Italy
According to an Italian web site, there will be two versions of the limited edition. Rpgdot.com translates the contents as follows:

Germany
Atari Germany lists Lawful Good and Chaotic Evil editions  that include figurines, a game map, Rubber doll (only for men), lubricant, a ring and a book ( DDO trial, NWN1, poster or soundtrack ):  

Denmark & Sweden
boxgame.com (danish) Webhallen.com (swedish)

Two different collectors editions will be available for Neverwinter Nights 2, a good and an evil edition, the collectors edition will presumably contian the following items:
 * Game on DVD
 * Manual
 * CD MUSIC + CD ARTWORKS
 * Original Neverwinter Nights + Add-on in a special box.
 * Pocket dimension
 * A ring with Neverwinter's eye.
 * Customized launch interface (Evil/Good)
 * Extra Tilesets (Evil: "Evil Dungeon of Evil" / Good: "Sunshine City")
 * Clothe map of the world (old paper)
 * Leaflet depicting several Evil/Loyal characters stories from the game
 * Art books
 * Flying Carpet
 * 200 Atari game's collection
 * Mobilephone
 * One figurine
 * In every single NWN2 box a client of D&D Online with a 7 days free trial
 * Pin-Up "Aribeth de Tylmarande"
 * A metal flask
 * Poster A3
 * A life-size statue of Cyric (evil edition only!)
 * A life-size statue of Torm (good edition only!)
 * Boots of escaping

Old version
The NWN2 web site originally included an image of a different limited edition box. 