It won't be that cheap. An f/0.95 lens is one stop faster than a f/1.2 lens, and one stop brighter usually means 2-4x the price. The other first party f/0.95 FF lenses from manufacturers are the Leica 50/0.95 at $13k, and the Nikon Z 58/0.95 Noct at $8,000 -- both without AF.
If Canon makes...