One factor in all this discussion is whatever Kemper roles out, has to make economic sense. Remember that they only make money to pay their employees and bills by selling new products, not making current owners happier. Obviously making current owners happier has an effect on attracting new owners, but it's a means to a necessary end. In a world where mammoth companies that seem to dominate markets one year and are on the fringe of bankruptcy the next, just having a "successful"well-loved product isn't enough.
There are a few things that could make the Kemper a more complete products, and from an economic standpoint a more sellable product: Only 1, and 2 can likely be done with the current hardware and GUI of the current KPA
1) an editor,
2) fancy reverbs
3) dual profiles
4) more effect loops
5) ability to be recording interface.
If there's plans for a new KPA in the next couple years, developing an editor for the old KPA would be a waste of resources, since a new editor will need to be built from scratch to work with the hardware and GUI of a new KPA. At least development of reverbs would be something that could be incorporated into new products.
Also, a floorboard version and perhaps a two button pedal that just makes and plays profiles and no effects would target another market and will attract new customers.