Other devices could also be on the agenda, including refreshes of the MacBook Air line -- chatter has regularly surfaced about a Retina-equipped Air -- or a revamp of the iPad and/or iPad Mini, which received only minor enhancements last fall.
"I do wonder if there may be something else that by itself might not be big enough for its own event," ," Milanesi said, However, she was skeptical about a new-sized 12-in. MacBook Air with a Retina display, since that would make more sense to tout if or when Apple launches a larger-screen iPad, which some have called the "iPad Pro."
That larger tablet, which may in fact be the origin of Retina-ready MacBook Air rumors, is expected to roll out later this year.
Apple will live-stream the March 9 event, keeping alive its string of consecutively-webcast major product introductions that include last year's iPad Air 2 and iPhone 6 unveilings. The latter, where Cook used Steve Jobs' line of "one more thing" to preface the Apple Watch, was a broadcast disaster: The botched stream featured black screens, failed audio and what sounded like a Chinese translator talking in the background.
Next month's webcast will begin at 10 a.m. PT (1 p.m. ET), and will require Safari on OS X or iOS, or an Apple TV. Windows users will be out of luck unless they have a virtual machine running OS X.
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