I was referring to the fact that B16 spoke more than once about the desire of a "smaller, purer church".  Then, I stated that any community that continues to decrease in size will eventually become extinct.
I am, by no means, advocating for the extinction of the Catholic Church -- or of any church, for that matter.  
The article that I found after a brief search that relates to what you write re 2060 is https://www.osv.com/OSVNewsweekly/Article/TabId/535/ArtMID/13567/ArticleID/22132/Universal-change-World-religions-in-2060.aspx.  The statistics show that, even with the growth in numbers, the percentage of Christians is projected to remain virtually the same.  The increase is projected, based on anticipated births in Africa.  One thing that the article does not address i that the birth rate is bound to decline as birth control becomes more accessible to women, something that happens in countries as educational levels rise.