Is there no market for a swivel screen FF camera?

I'd love to see it. My 10 year old Nikon Coolpix had it and I used it a lot. Especially when standing in a crowd and trying to get a shoot from overhead.

Don't forget it would cost Canon a few bucks to add it, so they might want to charge 4K for the Mark III, which would be ridiculous, so they charge 3.5K, and people buy it.