Based on the amount of smoke still visible downtown, I'd be surprised if the game goes ahead. Perhaps it's a little clearer outside the core.
I appreciate fans want to tailgate and get the "full" experience but (i) it's a pre-season game, and (ii) I think they expected the air quality would be much more improved, and 5:45 is basically the last chance to pull the pin. I feel bad for the rookies and players trying to make the team -- I wonder if they try to do a "mock scrimmage" against Saskatchewan tomorrow if things happen to clear up overnight...
According to this, Air Quality is still a 10+ and not expected to change later tonight:
https://weather.gc.ca/airquality/pages/abaq-002_e.html
EDIT: And as I look outside now I actually see a slight improvement. Still dicey for a 7:00 pm kickoff though...