In a note to clients — as noted by AppleInsider — KGI Securities analyst Ming-Chi Kuo believes that the 2018 model-year iPhone will launch "on time" and with a "stable supply" sporting the existing TrueDepth system, and Face ID user authentication. Of course, the may not bring you much comfort if you’re awaiting the 2017 iPhone X.
He believes that predictions of a lower-spec TrueDepth system with hybrid glass and plastic lenses in a late 2018 iPhone are wrong. Kuo thinks Apple will stick with the existing technology with no increase or decrease in sensitivity or accuracy. He also feels the company's supply of the components needed for the future iPhone, as well as the iPhone X are "now stable, leaving no need to switch to other solutions."