One of the biggest problems I have with all these renders we've seen in past weeks is that the Smart Connector placement is completely wrong. The Smart Connector is on the edge of the iPad Pro, not in the middle of the back, and it would be the same if it's implemented on the iPhone. I'll go further, and speculate (and it is all just speculation at this point) that it would be on the same side as the Smart Connector on the iPad Pro, and not on the bottom (where it would be competing for space with the Lightning port, speakers, and potentially a 3.5 mm headphone jack).
Basically, I'm yet to see a render of the proposed iPhone 7 that convinces me. Most of them seem to be based on taking the existing iPhone 6(S) case, and adding and removing rumoured features, with no real concern about design. And despite the fact that none of this is from Apple, and much of it is speculative (or downright fantastical), Apple is condemned by some (and lauded by others) for a perceived lack of innovative design (or otherwise).
My advice is to wait until September to see what they actually do before leaping to conclusions about design, features, or the lack thereof.