There will be a lot to see at IBC around 4K. It is certainly reminiscent of the rush of broadcast and production providers to add stereoscopic support to their products 3 years ago, so I will be anxious to hear what these companies think of 4K vs. 3D.
(Submitted comment: "Thank you for an interesting article. I would rather hope that IBC 2013 is instead remembered for the start of the High Dynamic Range (HDR)revolution in broadcasting.")