My Japanese can still be way out but these articles seems to be saying Tsunku has recovered enough to be 'producing' for the opening ceremony at Kinki University this year. I know he couldn't do it last year because of his illness, there seems to be some positive rumble from the wota that this is a very good sign for his health and chances he'll be back full time for H!P soon.
http://www.nikkansports.com/entertainme ... 32931.html
http://www.daily.co.jp/newsflash/gossip ... 0613.shtml