And don't forget China, which is moving into Africa in a very big way.
China is an interesting (and thoroughly messed up) place ... but I suspect its future is brighter (and I don't mean massive nuclear explosions) than we may think. Christianity is thriving there, despite persecution and being forced underground ... The Romans tried to destroy Christianity ... and ended up becoming Christian. I wouldn't be too surprised to see something similar happen in China over the next couple of generations.