This is all very interesting and I can't wait to see it, hold it, Put it through its passes.
This is what we know for now:
Much better
IQ.
Much higher usable ISO at 3200, It will be intersting to see what the next step of ISO is most likely 6400.
Same
SD card.
Same battery grip.
Better
AF speed at least with the 35mm Macro.
Very quiet shutter.
Although it's not stated, If we get better
AF speed then I would guess that we may see a slight increase in shutter
FPs say maybe 5FPs.
Live view has been mentioned but that is give or take for me.
Better, larger screen was also mentioned and if it follows the same tendencies as Samsung it will be 2.7 in. Pixel rate?
More ergonomic, I guess that can be kind of subjective depending on hand size and range of motion.
What else have you been able capture from the people in the know?