Canon will squeeze out the last drop of commercial value from this line of sensors before they move to the next generation. They is after all a commercial company trying to eek out a profit.
Since the new hybrid sensor has been around almost a year now, I'd expect to see it for a while. Its not the same sensor as in the older cameras.
Some think that the number of pixels defines sensor technology. That's why we had megapixel wars, because the uneducated masses think that more is always better.
So far, no one has moved away from the basic silicon technology, no black silicon or other revolutionary technology. There are slightly different versions of it, but no new tech has come out, and none is on the horizon.
Even the three layer foveon sensors use old tech silicon.