That said, Kemper is not obsolete or even close. The Kemper has it's own thing that neural networks can't do, that's internal amp edits.
This is quite an important point. While the arrival of neural network techniques is going to enable lots of interesting stuff in the music sphere, I think the fact that Kemper uses a "tuned model" approach means that you can get in there and make all kinds of useful adjustments to the behaviour a profile to suit your application.