According to Korean website The Elec Apple plans to use an LTPS OLED screen for at least one model of its iPhone 14 series models next year. This means that at most one iPhone 14 model would still feature a 60Hz display.
This report is consistent with previous information shared by Ross Young, a display industry consultant. He accurately stated that the new iPad mini would have an 8.3-inch screen.
ProMotion displays are featured in the new iPhone 13 Pro Max and iPhone 13 Pro Max. They have a variable refresh rate of between 10Hz to 120Hz. This allows for smoother content when scrolling text, video, and gaming. These devices can offer ProMotion because they have lower-power LTPO OLED screens, while the iPhone 13 and iPhone 13 min have LTPS OLED panels without ProMotion support.
It wouldn't surprise that at least one iPhone 14 model doesn't have ProMotion. Apple may limit the feature to Pro models next year in order to keep differentiation with the standard iPhone 14 models. Rumours claim that Apple will launch four iPhone 14 models next-year, including a 6.1 inch iPhone 14, 6.7 inches iPhone 14 Max, 6.1 inch iPhone 14 Pro Max, and 6.7 inches iPhone 14 Pro Max. There is no iPhone 14 mini.
According to the report, LG Display plans to supply Apple with LTPO OLED display displays by 2022. This would allow Apple to have a second supplier of ProMotion displays beyond Samsung.
The Elec reported in the past that Apple would launch an iPad Pro with LiDAR scanner in March 2020.