08/27/2015 12:40 pm ET

Apple Will Probably Introduce A New iPhone Sept. 9

Who could have guessed?

Surprise! A new iPhone seems to be on the way. 

Apple on Thursday sent members of the media an invitation to an upcoming event where it's expected to officially unveil the iPhone 6s. The invitation to the event, which will be held on September 9 at the Bill Graham Civic Auditorium in San Francisco, references Siri, Apple's digital assistant on iOS devices.

Rumors about an iPhone 6s have swirled for months. At the very least, it's expected to have a better camera and a selfie flash

New iPads and Apple TV units are also possible.