Whoever rendered this "concept" clearly thinks Apple are going to
accentuate the part of the phone that HAS to be there, and they'd rather
wasn't, which shows that these "concept" people are generally clueless, and don't take the time to ponder over the historical design hints and the "flow" of Apple design. Also, why would they go BACK to the iPhone 5/5S design features of having top and bottom panels like this? Before designing a "concept", sit down and do A LOT of research, and learn to distinguish the subtle patterns and evolution of Apple product designs before rendering these utterly inaccurate, silly "concepts", please.
You've completely mixed up two completely different generations of iPhone design, where you're breaking up smooth, elegant curves (6/6S gen) with the abrupt, sharp, hard lines of the 5/5S gen - that's
so ridiculous, gimme a break
Those two volume (+) (-) buttons:
~1 You're going BACK in iPhone iterations - why? They're now elongated, smooth buttons.
~2 Even if they WERE going to do that, which they're not, they are FAR too thick in proportion to the edge profile of the body.
~3 Those buttons protrude FAR too much from the surface of the metal.
The designer seems insecure in their convictions in regards to which generation of iPhone they think Apple are going to use as inspiration - the confidence in this design is
extremely weak indeed, with hints of sharp and soft curves contradicting one another all over the place. UGH.
Just... stop. We don't need your silly "concepts" - they're an embarrassment to you, and I hope you refund MacRumors their money!