According to various sources Her Imperial Highness Crown Princess Masako of Japan may be allowed to travel to Amsterdam, Netherlands, along with her husband, His Imperial Highness Crown Prince Naruhito of Japan, to attend the inauguration/investiture of His Royal Highness Prince Willem-Alexander of Oranje on April 30.
If the Imperial Household Agency (IHA) believes the lovely crown princess is healthy enough to leave the country for several days, well, it would be a damn miracle. So, keep your fingers crossed, folks. 🙂
royalcorrespondent.com 
It would amazing and well-deserved! 😀 She should finally have the chance to breathe without being watched all the time.