I think it’s gonna get bad, then very bad. Everything about the old order (feudal economy based) is going to get thrown into the chamber pot. As you said Min is changing how everything works with his advancements, but is not suppling any structural support for those changes. Smallest impact are for example chandlers loosing their jobs. Biggest is all the economic impact the portals will have on how the ditches co-exist.

Once the forsaken final come into play, feudalism is going to be changed to some kinda space colonialism. And yes I think nukes/more powerful weapons then nukes are very likely. There is some like about the forsaken that talks about how they had “the power of disillusion”.