I don't understand how Apple could lose the camera hump on the regular iPhone 7 without going dual-camera (since the dual-camera allows for thinness).
Also, the 4 to 5 transition was a major one, but the design elements from the 4 were undeniably in the 5 (from the shape of the volume buttons to the boxy-with-round-edges body). Nobody can deny that. They didn't change their design elements until the 6, so I don't expect the 7 to be radically different like the 4 was. It will still be round like the 6 whether people want to believe it or not. The iPhone 8, on the other hand, will be the next radically different iPhone.
Also, the 4 to 5 transition was a major one, but the design elements from the 4 were undeniably in the 5 (from the shape of the volume buttons to the boxy-with-round-edges body). Nobody can deny that. They didn't change their design elements until the 6, so I don't expect the 7 to be radically different like the 4 was. It will still be round like the 6 whether people want to believe it or not. The iPhone 8, on the other hand, will be the next radically different iPhone.