Your new MacBook Pro could have a fancy mini touchscreen
In addition to being thinner thanks to moving to USB-C, the latest rumour suggests the new 13 inch and 15 inch machines might sport a TouchID sensor. That would make a lot of sense for added user security, giving people the ability to unlock their highly senstive material using a fingerprint. It's also tech which Apple has had a lot of success with in the mobile space, so the move would make sense.
Another more off the wall addition is the possibility of including a small OLED screen just above the existing keyboard. This small screen could be touch enabled, essentially adding a row of context sensitive buttons right where you can easily access them.

