I can easily see governments forcing ISPs to blacklist the IP addresses of known VPN servers. I'm only slightly surprised that this hasn't happened yet in the UK and other such places. The first step is to try to ban direct access to websites. Then they'll likely try to ban the workarounds. Yes, power users will always find a way around these things, but it will work to stop many, I suspect.
And as for corporate/government VPN users, maybe this will be an excuse to introduce a VPN "license" for those who will be allowed to use them.