Just tested the new S88 MK2.
Anyone using this together with Gig Performer?
Use Komplete control?
No. But I’ve been looking at it for several months as a GP master keyboard. I had a very nice conversation with Native Instruments at the last IMSTA FESTA Berlin where we talked about a KOMPLETE KONTROL keyboard which is more focused on live playing (included audio interface, easier zone/split/master keyboard accessability). I hope that they are going to work on something in this direction. I will wait for that 
Playing a Native Instruments S61 MK2 with Gig Performer. Have assigned knobs and buttons with Komplete Kontrol; KK only seems to work in MIDI mode. Gig Performer support from NI is default MIDI; lacks some of the display features that NI supports for Ableton (for example). But otherwise is a nice performance combination.