Well I came up with an idea for a non-gaming mod, but rather a 'cinematic' mod for NW, that can be used for recording more complex machinimas or clan recruitment videos.
Basically, a mod in which we add to the game lots of 'drill' and 'parade' animations and weapon poses, such as a real "shoulder arms", "present arms", "charge bayonets", "port arms", "trail arms", etc. Plus, adding detachable bayonets to the weapons, different sword poses for mounted cavalry and various unarmed poses would improve the realistic feel of the game.
Also, making bots walk instead of run may help to make them keep line cohesion while moving around, and being able to spawn flags in commander battles would be nice too.
What do you chaps think? Bear in mind this mod isn't supposed to be played, but used as a tool for recording fancy stuff.