Case-Mate published a page today featuring iPhone 5 case designs and pulled it just shortly after. If the case designs are the real deal we may be seeing an overhauled design for the iPhone 5 after all.
Case-Mate recently claimed to have inside info regarding the iPhone 5 and iPhone 4S. (Which we are still a bit skeptical about.) As we get closer to an announcement we typically see a lot of case leaks but they don't typically come from a manufacturer as reputable as Case-Mate.