http://www.techradar.com/news/next-years-iphones-may-upgrade-beyond-12mp-rear-cameras

Next week Apple is rumored to be announcing the iPhone 8 (which may be known as the iPhone X or iPhone Edition) at an event in San Francisco, but so far reports haven't suggested it will be getting a major new camera spec.

A new supply chain rumor suggests Apple is planning to upgrade the cameras on all of its iPhone models, but that it's not ready yet and these changes won't debut on an iPhone until 2018.