One thing I've found myself doing a lot when making profiles is recording on a DAW to hear the difference between the profile and the original amp. I think it would be spiffy to be able to do this in the box using a loop without needing the computer and DAW.
Here's how I think that would work. The Kemper would have a "Compare Loop" function built in that would simultaneously record both a KPA signal and the amp/mic input signal to a short 10-20second loop and then once you're done it would switch off the "Direct Output" so nothing goes to the AMP and it would start playing back the loop, pressing the normal Kemper/Amp (A/B switch) would allow you to switch between which loop was being played back so you could hear and compare how close the profile is perfectly regardless of whether the amp is in the room or not.