The most interesting surprise are the Islamic lands, and their sharp decline in fertility. A decline that has not ended, methinks.
I don’t expect much from Europe. But if the Christians in the Americas both have children, and homeschool them, they can have a serious say in the future.
If African Christians homeschool their children, they will with ease dominate the future. but that’s a big if, as the continent has poor internet infrastructure. Perhaps from the mid 2030’s onwards, view wireless networks.
The Filipinos make a surprise showing in the future! Good for them!