Der Man Mit Der Maschine were showing off a few of their moduls at Superbooth this year, one of which is motorised faders for the eurorack eco system. This is something that in the past has been difficult to do in eurorack land because a motorised fader draws a lot of power, however with some clever electronics Der Man mit der Maschine were able to pull it off.
More info at Der Man mit der Maschine
Revisions that turned synths into brand new machines