It has been mentioned previously that Hasselblad is going to collaborate with Sony, possibly to use new Sony sensors in its medium format cameras. Today British Journal of Photography published a short article, which says that Hasselblad is going to release a CMOS sensor-based medium format camera with "much greater ISO performance". No mentioning of the size of the sensor or other technical characteristics, though.
http://www.bjp-online.com/2014/01/hasselblad-to-launch-cmos-sensor-based-medium-format-camera/
http://www.bjp-online.com/2014/01/hasselblad-to-launch-cmos-sensor-based-medium-format-camera/