What you're looking at may just be the iPhone 6. It seems to be coming in two sizes, a 4.7-inch model and a 5.5-inch model. The design itself is of course similar to all previous iPhones.
The picture comes from Sonny Dickson who is very well known for his accurate Apple leaks over the years. He seems to have a good source in the manufacturing side of Apple devices.
The devices seem a lot slimmer which has been rumoured for a while. It seems to have the slenderness we see from the iPod Touch.