FF sensor in compact body(like RX1) + pancake fast prime lenses(14,16,35,50,85,135, and or 200mm) = BIG SALEYawn. 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.
They better not be afraid, cause if they wait, Nikon & Sony will be more then happy to stomp on their feet for them.