And I wonder if the surveillance is the same on IPv6. Recently Tor is becoming IPv6 ready and tracking will be more difficult for a while.
I think the next layer of internet that will use encrypted p2p traffic and routes across providers and carriers for content publishing outside of state control will use IPv6. Those are so many that you can establish numerous tunnels on port 80 or 443, whatever to pass on seemingly genuine traffic which can be just padded or encrypted in multiple layers and it will be extremely difficult to track, especially if will pass over 2-3 hops.
Latency will be big, agreed, but the speed once established the connection will not be that bad, Internet speeds all over the world are still growing, especially in EU and Asia.
I am now using it to test exactly this kind of scenario, tracking routes, etc. Mainly at home to bypass NAT, however, having it only on one connection while the other providers keep promissing it for years is really frustrating, this month I will drop one of them as my contract comes to an end, specifically for this issue.
Also, the same provider offers IPv6 at home but not for businesses, they are so clueless that when I asked about IPv6 he told me that I have only one IP with my plan, not 6.