Image Sensors 2012 Conference published an interview with Eric Fossum answering on sensor technology questions. Some quotes:
Q: What new disruptive technologies do you see on the horizon?
A: Well of course my own pet project - Quanta Image Sensing (QIS)- could become a major disruption. I don't expect lightning to strike twice but as I like to say, you can't win the lottery if you don't buy a ticket. Computational imaging is getting interesting but it might be a few years before Moore's Law catches up to the aspirations of computational imaging and enables its full potential. I think computational imaging combined with the QIS could become a major paradigm shift but it is still early in that game. I think use of non-silicon materials could be disruptive if any of them work out. But, silicon is an amazing material and manufacturing and noise issues with non-silicon materials are non-trivial. Meanwhile, the rate of continuous improvement is so large that emerging technologies have to mature rapidly to have enough compelling advantage that they can grab a toehold in the marketplace once they get there. To that end, even a few years of continuous improvement can look disruptive to the user community.