This year, Samsung is porting the Infinity Display technology from the high-end Galaxy S and Note models to the more mid-rangy A and J series. According to FCC, the latest model to get the 18.5:9 aspect ratio Infinity Display screen seems to be a member of the Galaxy J family, most likely to be named J6.
https://www.notebookcheck.net/Samsung-Galaxy-J6-to-come-with-Infinity-Displays-according-to-FCC.299384.0.html