A Native Instruments rep said this
Chris @ NIJanuary 28, 2019 14:37
Our Development Team is in talks with Presonus about this already. An SDK has been provided to Presonus for adding Host Integration Support to Studio One, so it is up Presonus to decide if and when they would like to implement this into Studio One. Beyond this, we have no further information available.
MCU support is still something that is planned, but I don't have any information on when that will get added to the Komplete Kontrol MK2 keyboards.