Even though I can see the advantage of hosting the World Cup in South America, because there are some good economies here and of course the big passion people feel for football. I would also like this event to be hosted in more exotic places in the future.
Perhaps, the organizations and sponsors do not feel the need of doing so, but I think it would be a good chance to promote this sport in countries where it does not have as much importance in South America.
It is just an idea, sure, but I still recall how people got very excited in Africa when the WC got there for the first time ever back in 2010.
I think it should happen in South America because it's the 100th anniversary, and it all started in Uruguay 1930, so it would be really great to have it there.
But yeah, it would be a bit strange to have the whole continent qualified immediately without having any qualifying matches