As far as we know, three Samsung Galaxy phones were confirmed in 2016:
the Samsung Galaxy A3 (2017),
Galaxy A5 (2017),
Galaxy A7 (2017).
They will be carrying the model numbers:
SM-A320F,
SM-A520F,
SM-A720F, respectively.
One of them, the Galaxy A5 (2017), has been spotted in benchmark listings, giving us some of its specs, such as:
Exynos 7880 SoC, 5.2-inch display,
3GB RAM.
Unfortunately, there is no info about the cost of the device.