Engadget HD has the info on this tease of a new Sony 4K camera, being announced on the 30th.
It will be 4K, with broadcast quality 50Mbps data rate and a 4:2:2 color space and high frame rates and likely in the CineAlta PMW-F3 range. And that is an amazing camera, so this will likely be too, though that is still some serious compression for 4K.