Preview at WWDC likely in June, followed by September launch.
Apple to Provide Live Video of Today's Special Media Event on Apple TV
Apple will also be streaming the event live on its website, and users will need to be running Safari on Mac/iOS in order to watch the stream.
Apple is expected to unveil the 4.7-inch and 5.5-inch iPhone 6 alongside the iWatch, and will likely provide updates on iOS 8 and OS X Yosemite.
Apple's keynote kicks off at 10:00 AM Pacific Time, and MacRumors will also be providing a live blog, live tweets via the MacRumorsLive Twitter account, and a spoiler-free page for those who want to watch the full keynote at a later time.