Apple would rather sell us 3 iphones with 1 new feature rather than 1 iPhone with 3 new features.
I think people are dreaming that Apple is going to give us this magical iPhone next year with all these new features because it's a "special" year. Apple doesn't operate that way.
Secondly, Apple is a prisoner of its own profit margins. They added a 2nd camera to the 7+ this year and the price went up by $20.00. Can you imagine what a ceramic glass, wireless charging, 4GB ram, edge to edge display, touch ID under the glass type of iPhone would cost? 😱
Im predicting the 2017 iPhone will have a new case material (probably ceramic since they are field testing that material with the new Apple watch they announced) and possibly OLED screen.
Apple has been trying to engineer true wireless charging but have been having issues. I don't seem them taking the charging pad/puck route like others.