South Korean investment publications report, that Samsung will up the display size on the next Galaxy S-models and ditch the flat screen model. The bigger version might be called the Galaxy S8 Plus and come with a 6.2 inch screen. Alleged model numbers of the Galaxy S8 and S8 Plus have leaked as well.
http://www.notebookcheck.net/Samsung-Galaxy-S8-S8-Plus-Bigger-edge-only-display-and-onscreen-buttons.183032.0.html