Searching for a good reason to remove the iPhone headphone jack

Removing the headphone jack is a signal. The new version of the device must have a new feature in order to drive new revenue. After all, why do I need a new phone right now?

Apple has again stagnated on the innovation front, so they're instead making a change for change sake. Fortunately, they were at least clever enough to choose a change that was linked to increased licensing revenue.