How about "more everything"? In case you're unaware, the new supplement "Grab Bag" at...

https://www.kickstarter.com/projects/gregstolze/grab-bag

...has new side effects and backshocks specific to NAIN, along with new loose-dice charts for one-roll monsters. If that's not enough, how about rules for running lopsided combats in which you pit a company against a single entity? Just right for that "dragon besieges the Bleak Monastery" plotline you've been dying to run. Or you could take the "Cults of Ardwin" article, file off the place and race names, and stick it into the Nain Kingdom as a nasty surprise for magicians who think they have a monopoly on enchantment. Click the link and check it out!

-G.