Next year marks the 20th anniversary of the original iPhone's launch, although it's unlikely that any units are still in circulation. Apple has been rumored to have special plans to commemorate this milestone, and recent reports suggest a new design featuring a quad-curved screen.
Interestingly, this rumored design will not be an exclusive anniversary model. Instead, it will be incorporated into the iPhone Pro and Pro Max models set to be released in 2027. This design revisits the quad-curved screen, which some Chinese smartphone manufacturers previously experimented with before reverting to flat sides similar to the current iPhone models.

Additionally, Apple is reportedly working on implementing under-display cameras for the 2027 iPhone Pro models. However, it remains uncertain whether this technology will be ready by then. There is a stronger likelihood for Face ID sensors to be incorporated under the display, but this concept has been rumored for a long time without significant advancements from Apple.