University of Strasbourg and CNRS Prof. Wilfried Uhring presented his keynote "High Speed Image sensors" at SIGNAL 2016 conference on June 27, 2016 in Lisbon, Portugal. Few slides out of 33:
Talking about the IO speed, 25GPixel/s limitation is somewhat obsolete by now. For example, PCIe 4.0 standard defines 32 lanes of 16Gbps each, with the aggregate bandwidth of 512Gbps. Assuming 10b per pixel, one can get 51GPixel/s I/O speed by just buying the PCIe 4.0-compliant IP. And PCIe 4.0 is not the fastest interface these days.