I would prefer if the new Kemper was exactly the same size but profiles amp's at 99% accuracy with the full sweep of the amps's EQ and Gain controls. That would be EPIC! I already put a deposit down.
The issue such a technology would have to face is that tone controls on guitar amps interact: that is, each knob's intervention curve changes depending on the other knobs' positions. This makes things much more complex, and as much as it's nevertheless possible to achieve such a result, it also makes it largely impractical.
We should remember what the Profiler had originally been designed for: capturing one or more given signature tones/settings from a studio or live session in order to be able to get the same identical tone back w/o getting crazy with which amp settings, which mics placed where, which mixing levels on the console and the like.
IMO, this is the Profiler's strength, and its logistical characterization. It can't do everything. A modeller will model a given specimen of a certain amp/cab/effect, and will never be able to sound like that specific '59 Bassman with that specific cone when those specific tubes are worn at that specific stage unless that's exactly the specimen they have measured for their model. Specularly, a profile will never be able to sound like a given amp across its whole spectrum of settings.
Personally, I find these differences fascinating enough to not care about not being able to have "everything" under my hands.
For me, versatility is important only to the extent that one is able to find their own tone and feel. This can be achieved via a modeller, a profiler, a... capturer, or even a real mic'ed amp.