SAN FRANCISCO — Another Apple event, another mysterious building sprouting up seemingly overnight. They pop up to shield Apple’s prep work from prying eyes, but they also fuel the imaginations of anybody who’s interested in Cupertino’s next move.

The latest such structure — this time with solid white walls and a tented, tarp-like roof — isn’t nearly as elaborate as the gigantic building erected before last fall’s Apple Watch event, but the mysteries concealed could be gigantic.

The big reveal comes at the Yerba Buena Center for the Arts next Monday, when we will almost assuredly learn more about the Apple Watch (among other things). Until then, all we can do is wait and wonder: What could be hidden inside Apple’s mystery tent?

KGI Securities analyst Ming-Chi Kuo is one of the most reliable analysts out there when it comes to predicting upcoming Apple products.

Ahead of tomorrow’s Apple media event he’s tapped whatever sources he has, to unleash a new research note to clients about what it is that they (and Apple fans in general) should be expecting.

Ever since the release of the PowerBook G4, and with the exception of the plastic models, Apple has exclusively released its MacBook laptops in aluminum gray. But according to a new rumor, that may not last much longer: When Apple debuts the rumored 12-inch MacBook Air with Retina Display next year, it could come in two new colors: space gray and gold.

It’s been almost two years since Apple announced the Retina MacBook Pro, and it’s still the only Mac with a Retina display. But according to sources in Apple’s supply chain, that’ll change this summer when the Cupertino company finally unveils the Retina MacBook Air.