Part of me hopes that Apple’s Pro Workflow group is exploring something like a Touch Pad (not Bar) for use with desktop apps. A multi-touch panel that augments the keyboard, mouse, and trackpad that can be used to execute application-specific actions using an interface provided by the application. It could be a great way to provide color pickers, shuttle controls, etc. The kind of things the Touch Bar provides on the laptops, but with greater potential because of the less restricted height. Fingerprint authentication would be nice to have too, I suppose.