Archiver: I love this upgrade, but I'm wondering about what is NOT being said. HDMI output has a maximum of 4:2:2 10bit quality, but what about the in-camera files themselves? And what of useable dynamic range?
While the 4k output and 200mbps and 100mbps ratings should be excellent, what about the bit depth and dynamic range of the in-camera files? Surely Panasonic would make something of quantifiable advances in those areas?
I could be mistaken but I don't think you need the dock to record 4.2.2 out. I believe you can also use the built-in mini-HDMI port to an external recorder.
HaroldC3: 12fps is very impressive. Are we verging on the ability to shoot sports with mirrorless?
Consider that you can shoot at 30fps for hours on end at about the same resolution as older DSLRs like my old Canon 20D! That's still plenty of resolution for many purposes.