Similar to the real life, happy those who started and already own a business, for the rest will take years and lot of money. The internet will live many years from now, this is only the beginning, in my opinion the Internet is only a 1-2 years old child.
Everything is possible, in the future is possible to be forced to own a "license number", "identification number" as non-profit or business in order to rank in SERPs. All this things can be made in the name of security.
In the next 50 years the Internet can become a pure market, 99% a business, a virtual mall. Those who will pay more will have the best position, no one will dare to pay xxxxxxx $ to rank for a spam page. Everything will be under the control of the law. We will talk about millions $ for SERPs.
100 years ago anyone was able to sell anything, anywhere, now you must pay % or own a license if you want to sell your products.
One thing is sure, the good content will always be searched.