South African here, think there is massive potential for crypto in Africa. Quite surprised how big it is here in the south already. Think with the (slow but steady) spread of free wifi in Africa, it is inevitable that crypto is in it to win it here. Thats why Im loving steemit so much. It is such an absurdly brilliant way to "market" (forgive the wording) crypto.
South tends to be miles ahead of most African countries as concerns technology. I was impressed with the news item on a South African born crypto currency, Pipcoin. Not sure if the project is still alive though.