Announcing Carrentia, a module for Neverwinter Nights 2. Most likely both expansions will be required to play the mod. Not possible yet to say whether it'll be a full campaign, or just a short module. It's planned it'll let your character get to 4-5 experience levels.
Land of Carrentia is own setting, and the whole idea of realm is being developed, revised or expanded right now. Summaries of some locations being started so far are below.
Town of Torrest
Populated by human settlers, this area is a peaceful settlement only lately facing various sorts of problems. One of these troubles is an increasing amount of nocturnal attacks of wolves and werewolves. The town is being expanded, you will need to help build the blacksmith and the northwestern gate.
Town exists also on the elemental plane of fire since it is wholly tied to the storyline, so this plane, more or less, will be featured in the module. (Yes, it's inspired by Shadow Mulsantir, but not Planescape.)
This location is just a temporary starting point of the module.
Torrest undergrounds
Featuring various dungeon-like areas.
A quick list: (from left to right, top to bottom)
Floor Zero the main Temple area
-1 Temple basement
-2 Temple underground
-3 Temple crypt
-4 Temple catacombs
-5 Temple dungeon
-6 Temple dungeon chambers
-7 Temple grand chambers
Carrentia is just a nascent concept, nothing more at the moment. For those more interested there are three exploration demos, the latest one can be downloaded here: Moddb.com