There is absolutely ZERO chance I will ever port Knights Templar to NWN2. ZERO. I have spent a couple weeks playing NWN2 to get the feel for it, and it feels like crap. I have all the recent updates, and it still locks up for no reason, AI scripts don't work properly, the UI is horrible, the toolset is way too complicated, the camera modes are annoying, etc. Sorry, folks, but NWN2 is total crap. My only hope now is for NWN3 which is supposed to be released in late 2011.
NWN1 sets the standard for player created content. Personally, I would have opened up even more scripts in NWN1 for user customization, but it's not bad. Plus I see no reason why levels need to be hand drawn like NWN2. The NWN1 terrain textures load fast, and if resolution is a problem, they can be made as detailed as one wishes. For example, to send a 10 x 10 map of terrain squares, I only need 100 data transfers saying what terrain (water, grass, woods, etc) is in each square. The actual graphics are on the client, so higher resolution graphics wouldn't necessarily require more data flowing to the client.
We'll just have to see if NWN3 permits custom content. All we really need is a higher resolution version of NWN1 with far more item, creature, and terrain models.