If Apple, and their various supplier partners, have indeed figured out a true wireless charging system, it will be a game changer, regardless of the other technologies and features the next iPhone has. Power is definitely one of those things that Apple has spent a lot of time thinking about and working on, given their push to self sustaining electric systems.
And I can hear their pitch, talking about the work they've done developing solar and other green power sources. But powering a device like an iPhone (or other smartphone) is the one thing that everyone has to deal with on a daily basis and it's these kinds of issues that Apple is known for addressing / disrupting.
Inductive charging was a pretty feeble first step that Apple wisely did not invest in, as it's really not wireless in its current iteration. It's plug-in-free on your device, but you still have to take your device out of your pocket and and set it on an inductive charging plate, which itself needs to be plugged in just like a typical corded power supply we all use today with our iPhones.
To be able to have your iPhone in your pocket, or better yet in your hand while you're using it, charging without a cord, while you're at home, will be one of those advancements that we'll wonder how we lived without it for so long. I can see Apple and other 3rd party suppliers then produce and offer commercial sized wireless energy distribution systems that will be implemented at places like Starbucks, Apple stores, malls, public spaces, etc.
Sure, you might need to pay extra for the wireless charging unit, but I know I won't complain to be able to not have to worry, or even really think about, whether I have enough battery life on my iPhone is going to make the price worth the piece of mind.