The latest thing to emerge from the wheels at the rumor mill is the suggestion that the next iPhone will get a rear-facing 3D camera. According to Fast Company's sources, Apple will cram TrueDepth, the same sensors used for in the forward-facing array for FaceID, into the iPhone's primary camera setup. The tech will apparently be bought from Lumentum, the same company that currently makes the FaceID sensors.
Source: Fast Company