As work on the "Apple Car" progresses, Apple is coming up with new ways to improve automated driving systems, including using other sensors to enhance LiDAR scans to better determine what's on the road.
A future version of the MacBook Pro may not have a visible physical trackpad at all, and instead could use the entire surface below the keyboard bordered with light-up elements to create a more dynamic touch surface.
Apple's rumored car could have airbags built within the seatbelts and ceiling cavities for protection in an emergency, a design that could help ensure the safety of passengers when the seats are positioned to face each other.
Apple's long-rumored AR headset may include wireless charging points in the headband, locate its position in a space with ultrasonic imaging, and include an adjustable support structure to make it fit all users equally well, regardless of the size of their facial features compared to other people.
Apple wants it to be easier for users to unlock multiple devices in quick succession, with the authentication of a head-mounted AR or VR headset or smart glasses potentially allowing other nearby items to automatically authenticate the user.
A future version of the Apple Pencil could include a system that can provide vibrations to the user's fingertips while grasping the stylus, and may also be able to detect how the user is gripping the device.
Apple is working on new ways to use fabrics as part of the design of its devices and accessories, including a system for adjusting how tight a piece of fabric is at specific locations, and creating fabric domes that could be used as a switch.
The sudden appearance of the 'CarKey API' may only be the beginning, as Apple is seemingly exploring how it can expand on its cryptographic-based device authentication to bring digital keys into other areas.
Future versions of the Apple Watch could be upgradable, with the addition of a modular section to the back that adds new sensors and functionality to the wearable device, or to enhance the existing functions like battery life.
Apple wants to expand the abilities of HomeKit by making it possible for devices to communicate with wall outlets, units which could potentially track the location of other HomeKit hardware, as well as potentially simplify the configuration of new HomeKit devices with others.
Apple's long-rumored car could have a headlight system that provides drivers with more awareness of the road, by highlighting areas of interest ahead of the vehicle by making the light shining from the headlights brighter specifically in those regions.
Apple's long-rumored over-ear headphones could include a unique control scheme, one consisting of touch gestures that function regardless of how the headphones are oriented on the user's head, rather than dedicated function buttons.
Apple is continuing to look into the possibility of creating a foldable iPhone, one equipped with a hinge that allows a flexible display to be bent enough for the smartphone to fold, but preventing the display from developing a crease.
A future Apple Pencil could give more information to the user wielding it using haptic feedback, with Apple examining ways to create a shear force to physically inform users of touch events, via a small sensation at the fingertips.
Apple's long-rumored AR or VR headset could keep some of its optical components behind an electrically-controlled layer to hide them from view when not required, as well as earphones that could be removed from the head-mounted display and used as speakers.
The Apple Watch Digital Crown might be more flexible in the future, as Apple has come up with a way to turn the smartwatch button into a simple joystick by moving the rotational crown element laterally.