I was hoping that when they discovered how to mod the campaign map in Shogun II TW it would have made it possible to figure out NTW!
I even thought that since they can mod the map on Shogun 2, it would open up the door to whole host of new mods with all sorts of maps. I am not really sure why nothing came out apart from the one map including Korea?
Just a shame, if I were in CA/Sega you would think that it wouldn't be difficult to release a map editor/guide for NTW or S2TW now in 2015 as part of a total war collection deal to make a bit of money on games that are long past!
EDIT:
Here is an idea for CA if they are concerned about money...
Crowdfund an editor for S2TW (compatible with NTW as well?). Not only would they be able to raise the funds but they would show the modding community that they are happy to help increase the potential of mods at least eventually! Surely would then lead to a potential increase in sales of the older games as well? Its never going to happen though