Game Banshee has an interview up with Obsidian Entertainment's Kevin Saunders regarding the just announced NWN 2 expansion, Mask of the Betrayer.

GB: What new environments will we be traveling through in Mask of the Betrayer? Are there any specific areas you can describe for us?

Kevin: The story primarily takes place in distant Rashemen, near the infamous kingdom of Thay. We have carefully chosen specific locations, such as the snow-covered Ashenwood, to be tailored to this region while also allowing us to create new tilesets and terrains that will be broadly useful to the modders.