With slow motion up to 960fps, 4K Internal Recording, SLOG2 Gamma, and a fast Carl Zeiss 24-200mm f/2.8 Lens built in image stabilized zoom lens, the Sony RX10 Mark II sounds like a beast of a camera.
I'm interested in testing out the SLOG2 on this camera to see if it will hold up as a solid B Camera alongside an A7s. The camera is currently in stock and available at B&H (here).

Sony RX10 Mark 2 4K Video 28-200mm F/2.8 Zoom
