Dummy units of the entire iPhone 14 series have leaked online. The units show what the back of the iPhone 14, iPhone 14 Pro and iPhone 14 Pro Max will look like, plus the new 'Max' model. There is no iPhone 14 mini to be seen, either.
https://www.notebookcheck.net/Apple-iPhone-14-series-dummy-units-emerge-with-no-iPhone-14-mini-to-be-seen.614431.0.html