March 1st was the entries deadline as published in the Announcement that's linked from this event info page: http://www.valgardena.it/gardenaspri...hy/program.htm
Takahiko Kozuka has stated that he plans to compete here. The other entries for Japan (as posted back on 1/16 in the Japanese news thread in GSD) are:
Shu Nakamura (is he competing Sr or Jr here?)
Rin Nitaya (10th in Sr Ladies at Nationals)
Taichiro Yamakuma (N)
Eriko Yamakuma (N) they are twin brother and sister, according to NMURA
Yuhana Yokoi (N)
This will be USFS' developmental international competition again this year (entries have not been published online yet).