There have already been a few of us in the Game Master forums talking about potential custom campaigns, so yes we have some NWN veterans kicking around. I don't expect anything quite on the level of the Aurora toolset when it comes to ease of use, but from what bits we have heard it sounds like the new modding tool will be far better than the first one.

DOS2 Mods: Happily Emmie After and The Noisy Crypt

Steam Workshop
Nexus Mods