It's all about the megatronic receptors.
If they could engineer the positive luminators to activate on first current, the pinocchio pixelators could bypass the bayer filter. Then the RGB filter arrays would work directly off the incoming photons.
One of these days perhaps! I know those Canon engineers are all over this one.
Obviously, I have no idea. My unknowledgeable guess would have to do with speed of powering up the sensor.