I often get to the point, where I really could use more effect slots (and sometimes as well more slots in the stomp section). Three different effects and then reverb simply isn't always enough.
It would therefore be great, if more slots were added.
Of course the KPA itself has only as many buttons as it has, and therefore I imagined a potential way of doing it to be: when in the "effect module" (after having held down the "effects" button) where you can see the four effect slots, use the "< page >" buttons to go to a next page, where four more effect slots are available. These would then be slot 5-8 in the effects chain.
Hope to see something like this in some future update!