Neverwinter Nights 2: Mini-Preview at Armchair Empire

Armchair Empire has a summary article/preview of NWN2:

One of the few complaints players had with the first game and its expansions was the generic look of many of the levels. Because the game used tile-based level construction for both indoor and outdoor levels, things tended to look blocky and similar. Of course, this limitation was by design as Neverwinter Nights was meant to be very mod-friendly and the tile-based level design meant throwing together a scenario for a group of friends to play through was a simple process. To give the new game a more dynamic look, Atari is implementing the use of height maps for the outdoor levels which will allow for more creativity and variety without affecting the mod scene adversely.