Stabby's concern has been mine from the start. DM Mode is useless unless the editor is useable at minimum of the NWN toolset. Useable at the NWN2 toolset would be better IMO, but I'm not holding my breath.
IMO if the game design is game first and toolset as a stretch goal I just don't see it getting to where the community thinks it should be. DOS1 was a great game with a toolset as an after thought. I see the same pattern here.