I think this will be the end of Google as a search engine. I don't see how website owners don't start charging bots for scraping their content.
Google will have to survive on other products, like YouTube. I see a massive contraction of their employee base in the not-so-distant future. Low-return products that are subsidized by the massive revenue of search will likely be cut as well if they can't be monetized more effectively (which will ruin them).