Neverwinter Vault is reporting that Storm of Zehir, the second expansion for Neverwinter Nights 2, has gone gold, and will be released on November 18. I plan on getting the expansion when it comes out. In the past, multiplayer modules built with expansion assets required players to have the expansion to play. So that I don't have to try to figure out what assets (placeables, items, etc.) are from the expansion, plan on needing the expansion when the campaign resumes.