Agreed. Perhaps Arinze will be next!
The LORD knows :-). Cardinal Arinze is getting on, and I recall reading that he hoped to return to Africa for his last years. The new Pope is pretty spry, and in, say, 10 years, there will be a new crop of great, younger Cardinals from all over the world. I still hope to see an African Pope in my lifetime - about the next 50 years!