The latest rumors claim that the Dynamic Island feature of the iPhone 14 Pro will arrive on the standard iPhone 15 (non-Pro models), but that other features will be reserved for the next Pro models. This is particularly the case with the LTPO screen, according to the "yeux1122" account of the Korean blog Naver.
iPhone 15 "standards", no LTPO screen but increased autonomy?
No LTPO screen so no variable refresh rate between 1 Hz and 120 Hz, and therefore no Always On (or Always On) mode, which allows the lock screen to permanently display information without affect autonomy. In return, be aware that all iPhone 15 models should be equipped with a new display driver chip that is more efficient in terms of energy consumption, with a beneficial impact on autonomy. Source: macrumors