I think we'll see a teardown and rebuild of the west stand. Then of course 2 huge temp grandstand in each end.
There will be a total security lockdown of the CNE grounds, so they can go as far back as the food building.
Thing is, BMO needs a major overhaul for a world event. We have next to no luxury boxes, even the press box is tiny.
Look at our stadium compared to the NFL facilities in Dallas, NYC (Jersey lol), new ones in LA, maybe even Vegas!
BMO is perfect for TFC and the MLS, but as of today any of the Canadian facilities look minor league compared to the NFL options.
I can only imagine the overhaul the Big O will require.