Over 40 years out is a ridiculous amount of time to make these predictions. Christianity is rising fast in Africa and China. I do not know if it will continue for four decades.
Likely, but far, far from certain.
Christianity has also risen in Russia...
The Muslims will hurt the Christians of Africa.
Christians in America should not give up on the young. This insanity of the radical left and the harmful interactions with Muslims will bring them back to our side if we are reaching out. The US is still a question mark. If we can hold off the left, many Communist/Muslim sympathizers will flee to Canada and Europe. We just have to hang on hard.
Muslims will fully take over Europe and many will convert rather than die for their nothingness - atheism. Western culture will be totally erased by the white communists and the Muslims. Poor Europe.
Radical Muslims will have Europe, much of Africa, all the middle east... The world is in for a ride in the future.