I speculate that it might start off as a mesh network, maybe using unregulated spectrum on a local level. It will probably resemble BBS fidonet, but with more modern features. bandwidth and E2E latency will be terrible, but it will be free.
As long as there are skilled engineers who have the spirit of freedom, there will always be an 'open' network for humanity to communicate (with all the good and ills that comes with 'open').
It's not focused on censorship resistance but instead decentralisation.
Most people don't know how the internet works, don't care as long as it works and do not think about it beyond that.
That would be for messaging & fun internet.
No money or influence to be made.
And fringe or grey area stuff. Copyright infringement, censure evasion… meh.
The general public doesn't care, and won't care until it actually materially affects them. Until then they'll look at the people who do care as weirdos. And even then, plenty of people still won't care so long as they can access their social media etc. on their shiny new iPhone 28 or whatever version is out when that time comes.