Citing unnamed people briefed on Apple's plans, the WSJ says the revamp will include features like a "new way of charging the phone."
This nugget builds upon upon what Joshua Topolsky of This Is My Next reported back in April about Apple's fifth-generation iPhone: "some form of inductive or touch charging."
Inductive charging is a wireless charging method whereby a device has all the charging electronics built into the device, with no point of electrical contact. You simply put the phone on a charging dock, like those used in electric toothbrushes and 2009's Palm Pre.
The WSJ's source also re-iterated earlier rumors that Apple was developing a cheaper iPhone for developing countries.
On Wednesday, the WSJ reported that Apple was expecting to sell 25 million fifth-generation iPhones by the end of 2011. Dubbed by its unnamed sources as the "iPhone 5," the device sounds like a minor upgrade from the iPhone 4, with a thinner, lighter chassis and an eight-megapixel camera. Furthermore it would use wireless baseband chips from Qualcomm, rather than chips from Infineon Technologies as discovered in iPhone 4 teardowns.
Most reports point to Apple announcing the next iPhone in the late summer, with a September launch.
For a run-down of the most prevalent rumors surrounding the iPhone 5, check out "8 Likely iPhone 5 Rumors, and 2 Wild Ones".