Black Isle - the company who supposed to do BG3 and helped BioWare to do BG2 and BG1 - smashed up and BioWare did NWN instead. Yes it should have been a replacement for something not to come at all.
I will refer to Neverwinter Nights as 'NWN' and to its expansions as 'SoU' and 'HoU' respectively. Neither the graphics nor sound went better, but the storry did. And yet another thing to note: Though the expansion packs 'The Shadows of Undrentide' and 'The Hordes of Underdark' are not tight with the original game I will still mention their story. Neverwinter Nights is yet a role playing game in the Forgotten Realms world, and uses Dungeon and Dragons ruleset 3.0. Lets begin dissecting this old game, now that all patches, updates and expansions have been released.
Neverwinter Nights 1 Review by flo, September 17th 2007, 03:49:11