Bang on the money! This exercise is nothing but a money grab by Apple. Even Arn this sites owner was posting how the current Lightning port does everything needed for headphones, so it won't be replaced with some magical one!
And PLENTY of people use their iPhones for music and use expensive headphones, they do not want to be forced to buy adapters and they certainly aren't going to replace their headphones just because Apple wants more profits.
Their is nothing wrong with the headphone jack, their is nothing that can replace it across the entire industry, (the majority seem to say Bluetooth headphones and even Apples implementation of Bluetooth are rubbish).
And I also do not accept the, everyone just uses the headphones included in the box, argument either, their would be a vastly reduced headphone market if that was the case.
Apple would no doubt make the iPhone even thinner and fit an even less powerful battery, but that's what the ugly Apple hump battery case is for right? Oh and to make Apple more money.
One day Apple will sell an empty box, you will have to buy the phone components separately at additional cost, the box will still cost $600 though and it's fans will praise them from the rooftops for their utterly amazing innovation and ingenuity.....