The official Japanese website for Dragon Ball Kai has not quite fully updated yet in preparation for the continuation into the Majin Boo arc next month, but a new announcement was recently posted promoting a preview event at AnimeJapan 2014:

Special guest Masako Nozawa along with other participants will take part in a behind-the-scenes event to hype up Dragon Ball Kai before it goes back on the air next month. Nozawa (and perhaps the unspecified “others” as well) will share stories and discuss the “highlights of the program”.

The special talk will take place during AnimeJapan 2014 at Tokyo Big Sight (Tokyo International Exposition Center) in Ariake (Kōto-ku, Tokyo) 22 March 2014 at 1:00 p.m. and will last until 1:40 p.m.