As per rumors from China, the successor of Galaxy S7 is likely to come with dual-camera setup. It is also rumored that handset will have Ultra HD display support. The purpose of UHD display is to provide exceptional VR experience to the user.
With Dual-camera setup and Ultra High definition display, Samsung Galaxy S8 will be the first smartphone by Sammy of its kind.
There have been also rumors that the next series of iPhone, iPhone 7 will come with a dual-camera setup.