This is very bad news!
The Japanese press text can be read here: http://www.cpplus.jp/download/jp/cancellation_of_cp+2020_visitors_jp.pdf
Sony also issued that statement:
The World Premiere Show of Cameras and Photographs, CP + (February 27-March 1, 2020, Yokohama), has been canceled due to the importance of customer safety in view of the spread of the new coronavirus infection. For this reason, our exhibition and the linked event at “α Plaza” in the Sony Store will be canceled.SAR
We apologize for any inconvenience this may cause to those who have been looking forward to this event, but we hope you will understand.