We have seen many leaked images of what appears to be the next iPhone, even videos, but very recently a video of an iPhone7 prototype running testing software has been leaked.
Here is the video of the iPhone 7 running testing software:
Although this video has just surfaced, it doesn’t really show us anything new.
We already expect the following:
Less antenna lines;
a dual-camera on the Plus and/or Pro model;
an improved camera on the 4.7″ model;
32GB, 128GB and 256GB storage tiers;
removal of the 3.5mm headphone jack;
a new color which may be blue but is perhaps more likely to be Space Black;
and possibly a Force Touch Home button.
Sept is coming fast, and I expect we will see many more leaks between now and then.