A recent leak attributed to IceUniverse on Weibo shows a phone with a display showing a tiny camera pore in its upper edge in place of a sensor-bar or notch. This image appeared alongside the text "OPPO R19" and the date 2019.3. It may indicate how screen-to-body ratios may be improved in the phones of next year. .
https://www.notebookcheck.net/OPPO-R19-leak-hints-at-in-display-selfie-cameras-as-a-thing-in-2019.338338.0.html