http://www.sonyalpharumors.com/sr5-sony ... -4k-video/
He is also speculating that(SR5) Sony A7s will shoot 4k video! Live announcement at 2pm Las Vegas time on Sunday!
I am still not 100% sure yet if it will also feature the superb A6000 hybrid AF. But my guess is that the answer is YES and this could be the reason why it has the “S” suffix for “Speed”
Time will tell, but it just confirms that Sony are aiming for the upper segments of "camera spenders" - quality and performance before price.
It may be time for "the penny counters" to find another brand.