Apple reportedly is considering to feature E Ink on their future keyboard. E Ink keyboard can display different not just QWERTY layout but also context sensitive function based on active application. E Ink keyboard will open up other opportunities too. For example, the same keyboard can be switched between QWERTY and emoji like we use to be in a smartphone.
There is also rumors saying Apple is interested in acquiring the company which created the E Ink keyboard but Sonder’s CEO denies it.
Steve Jobs vision for the on-screen keyboard on the first iPhone: