Sony announced the new Sony A7sII. Stay tuned! I will keep updating this post!

Preorders:

The new Sony A7sII can be preordered at Adorama now (Click here). And also the new FS5 camcorder (Click here).

A7sII at BHphoto (Click here).

Key specs:

12MP Exmor CMOS sensor

RAW output 14 bit (real or lossy?)

Internal 4K recording with higher dynamic range

5 axis stabilization

Much improved AF in low light conditions (169 AF points)

The A7SII will be available in November 2015, at 3400€.

Press text, Image samples and videos:

Full Sony specs on that SonyAlphaRumors page.

Sony A7sII official press text: “Out of darkness cometh light” on that SonyAlphaRumors page.

5 Things You Need To Know About The New Sony Alpha a7S II (WexUK).

List fo real world pictures of the new Sony A7sII! (SonyAlphaCameras).

Sample photos at Sony.net Gallery.

α7S II – 4K low-light ISO comparison MOVIE | α | Sony (Youtube video on Sonyalphacameras).

α7S II – 5x Slow Motion “Landscape” in Full HD | α | Sony (Youtube video on Sonyalphacameras)

α7S II – 5-axis optical image stabilization | α | Sony (Youtube video on Sonyalphacameras)

α7S II – S-Gamut3.Cine/S-Log3 and S-Gamut3/S-Log3 movie | α | Sony (Youtube video on Sonyalphacameras)

α7S II – High quality 4K movie “Takigi-noh” in Full frame | α | Sony (Youtube video on Sonyalphacameras)

α7S II – Fast Intelligent AF for movie | α | Sony (Youtube video on Sonyalphacameras).

Presnetation at TheVideomode.

Newsshooter at IBC 2015: Sony A7s II first look from Dan Chung on Vimeo.