I think everybody agrees that Sony makes excellent sensors, but they simply (still) don't know how to make a camera for photographers.
Well, that's why I have a D810 not an A7rII.
That said, Sony's improvement in their cameras is evolving at nano-speed, so there's no telling what the next iteration in their FF mirrorless is going to look/perform like.
That is what makes innovation so cool ...
However, given the utter dominance of the new AF system by Nikon, I am most excited to see what the D900 looks/performs like, sensor-wise, and full-function-wise.