By now, it is likely that you have read at least one rumor that the typical lozenge shape of the main iPhone camera module will mutate into a perfect square this year. The latest possible leak on the subject seems to confirm this design decision. It involves images of a case-mould for what may be 2 new iPhones.
https://www.notebookcheck.net/Alleged-case-maker-s-impressions-for-iPhone-XI-and-XI-Max-appear-to-confirm-square-camera-module-yet-again.418560.0.html
Uau, that looks really bad :D congrats apple...