There isnt a great deal out there on the future of nation state’s specifically relating to Bitcoin that i know of.

You can read ‘The Sovereign Individual’ which was absolutely prophetic and ahead of its time in 1997, the authors envision a world with something like Bitcoin in it and understood the implications but it’s mostly talking about a world like we have today.

Balaji has a book called ‘The Network State’ which is ok and hits some of the right themes but misses others.

‘The Machinery of Freedom’ isn’t about Bitcoin but it’s an in-depth view of what a stateless society at scale might look like.

nostr:npub1s05p3ha7en49dv8429tkk07nnfa9pcwczkf5x5qrdraqshxdje9sq6eyhe has spoken a bit about it in some pods I’ve heard, as has nostr:npub15vzuezfxscdamew8rwakl5u5hdxw5mh47huxgq4jf879e6cvugsqjck4um, but neither to my knowledge have fully fleshed out the game theory and the push-and-pull dynamics that might/will play out.

nostr:npub1r8l06leee9kjlam0slmky7h8j9zme9ca32erypgqtyu6t2gnhshs3jx5dk has done a number of pods on free cities as well.