There won't be much Sony CCDs on USB3 at start as they aren't fast enough to bright them to the USB3 land. Later yes, but not soon. For example USB3 camera with CMV4000 that has a 2048 x 2048 frame can do 90 FPS. Probably only fast SSD can handle that
I hope that PGR will make a nice USB3 cams with CMOSIS and e2v Ruby sensors. 1" CMV4000 for solar/lunar and Ruby EV76C660 for most sensitive Solar System imaging camera.