The high screen-to-body ratio has become standard for most new smartphone nowadays. A rumor that the upcoming Samsung Galaxy A-series (2018) would feature the Infinity Display just like the Samsung Galaxy S8 & Note8.
One of the well-known smartphone case manufacturers, Olixar rendered cases for the Samsung Galaxy A series (2018). From the render, we can see the new placement of fingerprint scanner on the rear below the camera and Bixby button below volume rocker.
Do expect the new Galaxy A-series to announce in January 2018 since the Galaxy A-series (2017) introduced early this year.