Their something i want to understand from this your explanation, Because i believe that hosting a world it's a continent that host the cups and the continent is hosting it, it's only one country that will host it, or the cup is something that three or four countries come together to host a cup, Because making a reference of this countries here, that means a world cup it's not one country that will be responsible of hosting cup.
You have to update your self more on the next FIFA world cup. The world cup is going to be co hosted by three countries and those are Canada Mexico and USA. You can check online and read about it more. This is the first time for three countries to co host the FIFA world cup but it is not the first time to try the co host strategy for the world cup. In 2002, it was co hosted by south Korea and Japan, the opening match was in South Korea and the final was played in Japan.