The main change is a sixth row of apps that is one more than the Apple iPhone 5 has, and two more than what was on the Apple iPhone through the Apple iPhone 4S. The so-called Apple iPhone Math rendering from appledigger.ru includes a 12MP camera and a variety of colors. The latest speculation calls for a 4.8 inch Apple iPhone to be launched no earlier than 2014. Until then, you can check out the video below to see what such a beast might look like.
source: appledigger.ru (translated), iDownloadblog via CNET