"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
AirPods and AirPower: Everything We Know
Apple Patent Applications: Front-Facing Camera Depicted on Handheld Device, Rotatable Mouse
Apple handheld device depicting front-facing camera
This is not the first time that Apple has included product images in its patent filings showing front-facing cameras, despite that fact that none of its handheld products have yet to be released offering such a feature. Conflicting reports prior to the iPad's introduction disagreed over whether the device would contain a front-facing camera, and one was not included in the official introduction. An inspection of claimed iPad parts, however, reveals an empty space in the bezel that appears to exactly match that used to house iSight cameras in Apple's notebook computers.
A second patent application, detailed by Patently Apple, describes a mouse input device with a convex bottom and gyroscopic sensors that would allow users to control their computers by rocking or turning the mouse. Such actions could be used for horizontal or vertical scrolling or for rotating items on a computer screen.
Mouse roll for horizontal scrolling
The patent application appears somewhat similar in at least general line-of-thinking to one published last month that describes the use of force and velocity sensors to allow for gesture-based input on mice.