Ha, good one and agree. I think we are finally getting to a point now where if you have a current MS though that we are maxed out on possible improvements. Sure the software interface may change again, but functionality-wise, the car does everything possible that it'll be able to do. It's become more efficient, drives amazing, has decent driver assistant features (with its current hardware), etc.
I think at this point, we could just see some interface changes going forward, maybe some external app support/integration one day, etc. And all that isn't a bad thing either.