Also stating that the next bodies will get "upgraded" to the AF sensor on the 7DMkII has got to be wrong, that thing has just one f2.8 sensitive point and the rest are f5.6. That would be a serious downgrade.
All the f/5.6 points are also sensitive at f/2.8. It's a question of precision. Have they made the all-new AF sensor with small enough pixels that even the f/5.6 sensitive points are just as precise at f/2.8 as the old f/2.8 points were at f/2.8, and the new f/2.8 points much more precise with f/1.4 lenses than the old f/2.8 points were?
The specs for the new sensor as for DOF precision don't seem to have been released yet. Or, at least I haven't seen them.
I think this is the information you're looking for.
But then they give the caveat "The number of available AF points, and whether single line or cross-type, varies depending on the lens."
I have no idea what they're talking about, unless some of the AF points are cross type at f5.6 and become single line at an aperture faster than f5.6, which really just sounds dumb.
Then there's the overly optimistic idea that some of the AF points surrounding the center still work at f8, but you'd think they would have said as much if that were the case, given how big a deal f8 autofocus is.
I guess this would be why some people are so eagerly awaiting the release of the manual.