We have been hearing rumors about Samsung announcing the Galaxy S7 ahead of its regular flagship launch schedule, as it did with the Galaxy Note 5 and Galaxy S6 edge+. Today, Korean publication ETNews is reiterating the same; according to the publication's report, the Galaxy S7 should come out sometime in January in “premium” and “sub-premium” variants, something we exclusively confirmed last month. Google didn't translate the report well, but it seems to suggest that an announcement could take place on January 19th.
That would be around two weeks before the start of the MWC where we usually see new Galaxy S flagships; the Galaxy Note 5 was also announced two weeks earlier than usual, and it wouldn't be surprising to see it become the norm for Samsung's future flagship devices. The report also talks about the S7 employing an ePoP chip which integrates all the important sensors on a single die, which helps in improving efficiency and was first seen on the Galaxy S6 and Galaxy S6 edge.
The Galaxy S7 is expected to be powered by three different processors based on market, and feature a display with Apple's 3D Touch-like technology. It will also have a USB Type-C port, and possibly a dual-camera setup with a new 20-megapixel primary sensor. No matter when Samsung plans to make the S7 official, there is still a lot of time for the company to change the device's features and hardware, and we should be seeing a lot more information crop up in the near future.