There are very Rumors and leaks, Samsung Galaxy A8 and Samsung Galaxy A8+ have now spotted in user manual . Going to launched in this January.
The A8 duo for 2018 will come with 18:9 Infinity Displays and very small bezels. The A8+'s screen will be 6" in size, while the A8 will settle for 5.5". They will ship with Bixby Home and Bixby Remind, at least in Korea, but will not have Bixby Voice installed (or a Bixby button). You will get 4GB of RAM, 64GB of storage, a 16 MP main camera, a 16 MP + 8 MP dual selfie shooter, as well as a 3,500 mAh battery if you go for the bigger model.
Both of the Phones supports water and dust resistance.