"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
New Video Clip Allegedly Shows Powered-On Blue iPhone 5C
A similar video of what appeared to be a red iPhone 5C leaked one week ago, and a number of photos of packaged iPhone 5C units have also been surfacing. MacRumors also heard that new iPhone hardware was already being shipped into the United States last week, with a separate source claiming that the iPhone 5C was included in those shipments.
Apple's media event is scheduled for tomorrow at 10:00 AM Pacific Time, with the company expected to introduce both the iPhone 5S and iPhone 5C, as well as give a final look at iOS 7 before its public launch in the very near future.
Update: C Technology's site is currently down.