Things could change between now and 2026, but a big part of the reason the United bid was rated so highly by FIFA was because the United bid is using existing infrastructure to host the games (Bid has 3 in Canada, 3 in Mexico, and 17 in the U.S; 10 will be selected from the U.S). No new stadiums as of now are planned.

As part of the bid book, the games in Canada will be played in Olympic Stadium (Bid Book capacity: 55,822, expandable to 73,000); Commonwealth Stadium (Bid book capacity: 56,418); and BMO Field (Bid book capacity of 45,500). As I stated previously: MLSE was planning to update BMO Field (particularly the West Stands, Endzones, and Suites), so this works out for them because it should ensure some Government funding. Permanent seating for BMO should be around 35,000 for soccer; which would lead to the 45,500 capacity with temp seats. CFL set-up should be around 30,000 seats, and expandable to 40,000+ for a potential Grey Cup.

Halfiax will not be receiving any World Cup money for a stadium due to them not being a part of the bid, but that doesn't mean LeBlanc & Co. can't or won't ask for any funding when the time is right. It'll just be separate from the World Cup Bid.