One major thing that's needed in an updated Kemper Version is an updated it loader. At the moment the Kemper strips away all timing information in an IR. That can be good thing if you cannot profile in a studio environment and have lots of room sound on the mic's but you loose some of the organic feel of good IRs. This could easily be an option.
Also the profiling could get a little update. It struggles with certain amps.
Also some signal chains with more than one cab would be nice.
IMO Physical controls are much better than the Touchscreen for quick adjustment to the gain etc
. Kemper offers a great editor unless a QC -> so save that money for something else ?