The Cupertino, California, company on Thursday sent out invitations to an event taking place at 10 a.m. PT on March 21 at its headquarters. The invite teases, "Let us loop you in."

Could this mean Apple's launching a hyperloop to transport reporters to its hearing with the FBI in Riverside, California, on March 22? More likely, it's a new band for the Apple Watch or a return of Apple's old iPod loop strap.

Two products are widely expected to be unveiled at the event. The first is a successor to the 9.7-inch iPad Air 2, and the second is a smaller 4-inch iPhone that will replace the iPhone 5S as Apple's most affordable entry-level model.

While it's been almost exactly a year since Apple unveiled the first Apple Watch, a second-generation timepiece may not debut until later this year. Instead, expect minor Watch updates like new bands and watch faces, and possibly updated software. Software updates for Apple Watch, Apple TV and iOS have been available in beta, but haven't launched to the general public yet.