The photos were at first notable because they showed an assembled front panel; however, Macotakara has spotted what they believe to be a NFC sensor.
I found a part which is considered as NFC sensor is assembled on this LCD part photo. Considering past leaked new iPhone photos which are reported by iLab Factory or other reporters, a hole is pitted beside iSight camera and new expanded flex-cable, which are connected volume button, reaches where this hole places. This meant some sensor should be assembled on side of iSight camera, and it was cleared now. NFC sensor is it.
Take a look at the possible sensor highlighted in the photo below...