Without knowing more about Larian's engine, I have no idea if it's easily repurposed as a toolset. The first Neverwinter Nights had a toolset that resulted in a lot of wonderful, free player-made campaigns . . . however, since the toolset was where the focus of the game's development was, the main "game" was mediocre.
So, I guess I'm not sure how feasible a NWN type toolset with this engine would be. Larian also might not want to give so much of their engine away for "free;" it's obviously a valuable commodity these days.
