I would rather have them start out with one MF body, and slowly work their way to an affordable line-up; then, potentially grow in a decade or two, to a body that can fire off 10fps, useable for sports.
When I got the 1DX II, I was disappointed in how little the image quality changed, while the only upgrades were for video. 14FPS is no different than 12FPS, and might even be worse for storage. I see no reason for 20FPS on Sony's or Leica's cameras, while a fifteen year old 1D Mark III did the job.
Even if the first MF camera is a dud, Canon has the ability to make one that will serve the place of a flagship camera. But, instead they cater to "people in masses" in reality which there are more than enough competing brands pushing out identical cameras.
Canon already made the perfect camera, which was the original 1DX, almost eight years ago.
It's time for Canon to innovate again, and give part of their longtime fanbase and committed loyal users something new to play with.