I'm not sure if I like the idea of carrying the nation state analogy into the metaverse. The nation state is a mind virus and is built upon mass psychosis, violence and coercion.
It's a little more nuanced than just copy-pasting nation states into the digital realm. Taken from the book: "A network state is a highly aligned online community with a capacity for collective action that crowdfunds territory around the world and eventually gains diplomatic recognition from pre-existing states." Diplomatic recognition is still something I'm not sure is necessary, but it's an interesting model of what "nations" and collective human action could look like in the future.