Well, that leaves 140 countries where religions (I prefer to use the plural, because there’s no such thing as ‘religion,’ only religions) are doing fine. What’s going to be interesting about the nine is that when ‘religion’ goes extinct, a lot of the incentive to have children, especially more than one or two, also goes extinct, and because of this, eventually the people start to go extinct as well. So in these countries it will be a race to see whether Muslim immigrants from Islamic parts of the world, or Christian immigrants from Africa below the 10th parallel, Latin America, and the United States, are going to be the main people to repopulate these countries. The curse of living in interesting times!
Related: “Organized religion ‘will be driven toward extinction’ in 9 countries” by Richard Allen Greene at CNN.com