Images posted on Weibo claim to show an iPhone 6 under testing at Foxconn, via GforGames. The validity of these images cannot be confirmed, but the shots do line up with previous rumours. The iPhone 6 depicted here has a protruding camera (similar to the current design of the iPod touch), rounded edges and a considerably thinner profile than the current iPhone 5s.
Supposedly, these photos come from inside Foxconn itself. Drawings published on Friday reflect these images somewhat. A protruding camera component is part of the schematics, for example. Evidence of a thin chassis for the next-generation iPhone were originally found in January, albeit those pictures were as sketchy as these latest images.