Apple hold a special event most Septembers where they announce the latest phones.
usually every other year is the major increment and the years inbetween are the minor increment, which would usually mean an S model. They broke this tradition a few years ago and started doing the major increment each time. It is expected that an iPhone 14, iPhone 14 pro, iPhone 14 mini and iPhone 14 pro max will be released in September 2022. Our prediction is that this will be September 17th this year.