A couple of months ago @OnLeaks posted CAD-based renders of the upcoming Sony Xperia 1 III (a video too). Now accessory maker Olixar has put up cases for the phone on its official site, which show a familiar design – the same as in the CAD renders, but also the same as last year. Well, almost the same. The biggest changes occurred on the rear camera island. The telephoto lens is now a periscope, as expected. The ZEISS T* logo is still on board (denoting special coating on the lenses), even if it is no longer exclusive. Also, it seems that the LED flash and the 3D ToF sensor have swapped...
Source: https://www.gsmarena.com/olixar_shows_off_sony_xperia_1_iii_and_10_iii_case_designs_and_the_phones_themselves-news-48512.php