By this unleashed pictures of i phone 6, we can predict that the new i phone 6 may implement a 4.8 -inch Retina+ IGZO screen made by Sharp, which will make the iPhone 6 display thinner, brighter and much clearer, including Apple's new Touch ID finger print technology.
From the sources that i have heard - this new i phone 6 will be release September 2014, but the exact date is unclear. Wait and See!!