FF sensor in compact body(like RX1) + pancake fast prime lenses(14,16,35,50,85,135, and or 200mm) = BIG SALE
Yawn. If Canon would look to the RX1 for some inspiration, then I might consider it.
A full frame mirrorless from Canon (with inrerchangable lens system), is my dream camera.
But Canon will never do it. They are too afraid of stepping on their own toes.