Like radio, movies, television, news, music and other content based 'media' before it, the Internet's domination by government and corporate entities is almost a forgone conclusion. It is amazing how long it has remained 'free' for such a 'long' time. I say almost a forgone conclusion only because there are so many advocates that want it to remain free. Another factor that has kept the Internet free is the fact that it isn't under the domain of a single country (or affiliated group of countries).
Governments will play the public hysteria card and legislate the Internet to death. Soon ISP's will require governmental licenses. Routers will have to be certificated to join the net.
Corporations will either buy the Internet or use lobbying to force governments to make providers comply.
Oh, sure, another Internet will spring up that bypasses the Officially Sanctioned Internet. An Independent Internet. But as time goes on, more and more nefarious users will flood the second insecure Internet to the point that most of the content will be illegal and/or immoral enough for the world to come together to put an end to it. At that point only those truly wanting to avoid scrutiny will use the 'free' Internet and the Official Internet will be a sanitized Governmental brainwashing and advertising opiate pipe to the masses (just like news, tv and movies)