>but if the dual-pixel setup lets them have a different read-out/amp for each photosite
>per bayer CFA point...that'd be pretty awesome. Remains to be seen if they can maintain
>the good high ISO performance as they are essentially cutting the size of each photosite in half.
They don't have to. While increased ISO's are used, you could switch back to use both diodes together as a bigger one. Or you could do 2 frames while the mirror is up, one with pushed/pulled sensors and then one with normal sensitiviy. Rendered together gives you more Range with the same ISO.
There are a lot of possibilities in here because you can do a lot of mathematical variations in realtime. You could even get rid of the AA-Filter with comparing 2 different pictures, captured with one or another sensor-pixel. They already wrote of the Digic6+7, needed for the increasing data/algorithms
I don't think they will remove the AF-Modul from the higher spec-Kameras... you can't compare some phasedetecting pixels on the chip with a dedicated AF-Sensor. The areas are much bigger and more precisely... especially in the dark. But you could do nearly silent cameras for shootings, the mirror doesn't have to move upwards.