According to IHS technologies analyst Kevin Wang via Weibo, Apple may be planning to adopt a curved-edge design for the future iPhone, similar to Samsung's Galaxy S7 Edge handsets. I would take this one with a grain of salt folks.
Apple's supply chain reports have stated that suppliers have been retooling and making preparations for a rumored iPhone with AMOLED display. Rumors of Apple switching to OLED panels in 2017 have been flying around for some time now, but Wang is the first to combine the theory that the device will have an AMOLED display, which is curved on the right and left sides.