Not going to happen, unless they add a 4th lens to the ProsiPhone 16 Pro Max - 10X
iPhone 16 Pro - 5X
iPhone 16 and 16 Plus - 3X
A 3x lens will be useful in more situations than a 5x or 10x for most people. I have a Pixel 8 Pro that has basically the same focal lengths as the iPhone 15 Pro Max, and I think I'd use a 3x more than I've used the 5x.