The next Pro-grade iPhones are currently tipped to get LTPO displays. They are also rumored to finally upgrade to 120Hz refresh rates – and to always-on displays, according to the latest leak. The successors to the 12 series are also now believed to benefit from a new, possibly textured matte finish.
https://www.notebookcheck.net/The-iPhone-13-Pro-is-slated-to-boast-an-always-on-display-for-its-120Hz-ProMotion-display.521527.0.html