TouchID has reportedly been giving Apple headaches, but evidence is starting to mount that the fingerprint reader will move to the Power button on the side of the phone.
Forbes acquired schematics from case designer Nodus and created 3D renders based on them. What they show is that the Power button is significantly enlarged. Apple has already secured a patent for just such a setup.
The Home button will go digital on the new wider screen display (5.8 in diagonal). It will be a part of a new function area, which will also house the notifications. Those have been repositioned, since the top part of the display has a cut out to make room for the front camera and sensors.
Other changes include rotating the dual camera on the back 90° so that it will be horizontal when the phone is held in landscape like, say, inside a VR/AR headset. And one non-change the Lightning port lives on, there will be no USB-C in this iteration (despite MacBooks embracing the standard). And no 3.5mm headphone jack either, but thats no surprise.