What I am looking forward to in the iPhone 7 is a extended battery life, possibility of wireless charging and stereo speakers. I talk in my speaker phone a lot, so this would be useful to me.
It's going to be so good to get past iPhone 7 or whatever Apple labels it. Then we can get to the truly important iPhone 8. The model that will present Apple with a chance to prove they still have what it takes to innovate and be competitive.