Ultima V is being remade using the Dungeonsiege engine...
http://www.dungeonsiege.com/index.shtml
If these guys really release this product in April like they're saying at they might very well steal a lot of the NWN thunder. In this game market you just can't afford to blow months in litigation and expect to hold on to the "cutting edge" technology image. NWN is probably going to be an "also ran" by the time it comes out... too bad.