The Science Council of Japan has announced on March 12 the "Japanese Master Plan of Large Research Projects" selected projects.
You can find the report on the web: http://www.scj.go.jp/ja/info/kohyo/pdf/kohyo-22-t188-1.pdf
It is written in Japanese. The English translation will be available asap.
In the report, you can find that a total of 192 projects were reviewed in all areas of science (the list is from page 22 to 65).
Among those 192 projects, 66 projects were invited for hearing in August.
Then, finally, 27 projects are selected as the most important projects.
The Hyper-K project is one of the top 27 projects selected by the Science Council of Japan.
You can find "Hyper-K" in page 70 as "Nucleon decay and neutrino oscillation experiment with a large advanced detector".