We believe that this notch will be where Huawei implements their new Point Cloud Depth Camera to compete with Apple's Animoji and Face ID features. (xda-developers.com)
Short course «Geoscience investigations of point clouds» June 7 - 9, 2017 - University of Potsdam - Golm, Germany (opentopography.org)
from left: Point cloud by National Ecological Observatory Network / National Science Foundation / Cooperative Support Agreement No. 1029808; illustration by Jay Smith; satellite images by NASA / GSFC; photo by Amy Smotherman Burgess / Knoxville News Sentinel / Zuma (discovermagazine.com)