I think there are already cases from NHK this time: ice dancers Kana, Daisukei, Rikako, and Cho were all training overseas before the competition. None of them were required to have additional quarantine after coming back to Japan. There could be special rules applying to athletes (especially Olympic athlete) in Japan to waive the quarantine requirement.I really hope Satoko can compete at nationals but it seems that Canada is (which is admirable) being very strict about traveling.