Sony has announced the new FX3 Camera in the Cinema Line that has had more leaks of late than you can shake a stick at.
This is basically the video version of the Full Frame Sony A7s III. It has the same sensor and 4K capabilities, with more of a video focus, and places to mount external devices built in. And it is $3898.00 at B&H.
Impressive, though I would still go for the Blackmagic Design 6K Pro, but that has more to do with price, color space and the fact that I have EF lenses.