Macrumors and Appleinsider quote KGI Securities analyst Ming-Chi Kuo saying in its investor note that 2019 iPhones will not include a rear ToF camera:
"First, the distance and depth information provided by rear-side ToF is currently insufficient for creating the "revolutionary AR experience" that Apple ultimately wants to develop.
Second, the addition of rear-side ToF would do little to improve the iPhone's photo-taking capabilities, because the current dual-camera setup is already capable of capturing or simulating enough distance/depth information to make photo-features like Portrait Mode a reality."
