A biennial World Cup would generate in excess of £3.3bn in additional revenue over a four-year cycle, delegates at Fifa's global summit have been told.
Fifa has proposed the change as part of a revamped calendar.
All 211 member associations were invited to the summit as the debate over Arsene Wenger's plan to double the frequency of the World Cup intensifies.
UEFA, Europe's major leagues and South American football's governing body Conmebol have opposed the plans.
CAF, the African governing body, has given its backing.
