First, the new Super Hi-Vision sensor features on the first page on NHK's Broadcast Technology Bulletin. The article mostly re-iterates the stuff presented at ISSCC.
Second, DigiInfo.tv runs an article accompanied by Youtube video from NHK Open House 2012. The article says that NHK plans to increase the light sensitivity of the 1.5-inch SHV sensor.
Third, the new sensor presentation opens NHK R&D lectures at the company's Open House being held on May 24-27, 2012 in Tokyo, Japan. And there is a dedicated booth showing the new image sensor.