FIFA's executive committee voted unanimously in August 2000 to rotate the sport's top event among the six continents, and the U.S. Soccer Federation decided last month to proceed with a bid for the 2018 tournament.
"In the cycle, this would be the fifth, would be CONCACAF, and I suspect that will be fulfilled as of 2018," CONCACAF general secretary Chuck Blazer said Wednesday.
Japan and South Korea co-hosted in 2002, and last year's tournament was in Germany. South Africa is the 2010 host, and Brazil and Colombia are bidding for 2014, with FIFA's executive committee set to vote in November.
Blazer, a member of FIFA's executive committee since 1996, said that Australia's decision to leave Oceania and compete in Asia meant a five-continent rotation rather than six.
"Oceania, while being a confederation, with Australia having moved to Asia, has no potential host," he said.
The British government has said it would back a bid by England for the 2018 tournament. Europe has eight spots among the 24 members of FIFA's executive committee, but Blazer said he hopes the group doesn't alter the rotation plan.
"If they change that, I think they have to consider greater changes than that," he said. "I think ultimately equity should play its role first, and that if we started a process of rotation, then let's finish it before we switch to something else."
The United States hosted the World Cup in 1994 and England staged it in 1966, when it won its only title. The only other CONCACAF country to have hosted a World Cup is Mexico in 1970 and 1986.
Blazer also said CONCACAF will propose the same qualifying format for the 2010 World Cup that it used for the 2006 tournament. Under that system, three teams qualify from a six-nation final round, and the fourth-place team goes to a playoff for a berth.