Canon EOS-1D X “f/8” to be Added? [CR1]

Could it be?
I have received two random emails saying that “f/8” autofocus in the 1D X will be added to the final firmware for the camera.

By f/8, I mean the ability to have autofocus when the widest aperture of a lens is f/8. i.e.  a 500 f/4L IS with a 2X teleconverter. Which is 1000mm f/8.

We had heard previously that the perceived shortcomings in the 1D X could be fixed in firmware.

Canon EOS-1D X at B&H

cr