There is hope that the blurry image somehow magically added that camera hump, bump whatever you want to call it. The backcover finish looks quit nice (similar to the HTC phones) and it seems to be featuring some strange other hole on the back; fingerprint reader anyone? But that bump. What’s up with that bump? Unless there is an extremly good camera in there and maybe even a project Tango camera in the phone, there is no reason to have such monstrosity on your back of your phone.
And still, this is a rumor. A rumor of which I hope it is not true.