If we assume they will drop the 3.5mm jack in favor of using the lightning port for headphones that would mean we couldn't listen to music via headphones while

If we assume they will drop the 3.5mm jack in favor of using the lightning port for headphones that would mean we couldn't listen to music via headphones while charging the phone. That would be my biggest issue. On the plus side it would be nice if they put an extra speaker where the headphone jack currently is for stereo sound and so that the speakers are harder to obstruct.