The Northern lands are located northeast of Antagarich.
Is it strategically important? They lived there, and that's it. Perhaps this contradicts the Might and Magic world; after all, it's just an amateur project. We needed a territory to explain the colonial policy of humans and their "alienation" from this world, which will serve as... well, we'll see about that in the third campaign!!!
The only problem is the lack of free time for editing maps. In any case, almost two campaigns are ready, but I'm currently busy developing a map for Heroes 4; I'll return to working on the bonus pack in about a month. Of course, that's the best-case scenario.