Those are indeed very exotic places but being serious, I had other places in mind, like Mongolia, El Salvador, Cuba, Malta, Nigeria, etc. Places where a World Cup has had never been celebrated and give the people of that country the joy of an unique experience and worldwide cover.
Also, the cover would not be only about Football, usually news channels and documentary film makers pay attention to WC hosts to spread awareness of social problems, that is what they have done in Brazil and South Africa in the past.
One of the challenges would be security and keeo things in order for foreigners who would come to visit, but I would be confident that the organizers could achieve it.
Maintaining high levels of security will be a challenge. But then, the world cup was held previously in countries such as South Africa and Brazil without any major issues. Even then, hosting the tournament in Nigeria or some of the other African countries will pose a big challenge. Once in a while, FIFA may allow countries such as Nigeria to host the events. But then, they should not ignore deserving nations such as China and Japan, just because they are not poor. Despite being the most populous country, China has never hosted the FIFA world cup. This is not fair.