Back in January, an official announcement revealed that Queen Elizabeth was set to host Emperor Naruhito and Empress Masako of Japan—just a few months after Prince Charles travelled to Japan for Naruhito's enthronement ceremony in October. But due to the ongoing coronavirus pandemic, the trip has now been postponed.

"After consultation with Her Majesty’s Government and the Government of Japan, Her Majesty The Queen has agreed that, in the current circumstances, the planned State Visit to the United Kingdom in Spring 2020 by Their Majesties the Emperor and Empress of Japan should be postponed," Buckingham Palace said in a statement. "The State Visit will be rescheduled at a later date."

When the state visit is, eventually, rescheduled, here's what royal watchers can expect from the trip.

It'll be the first time the Queen meets with Naruhito since he ascended the throne.

Queen Elizabeth has met with other Japanese emperors on several occasions, hosting a State Visit for Naruhito's predecessor Emperor Akihito and his wife Empress Michiko in 1998, and another for Emperor Hirohito and Empress Nagako in 1971. Akihito also made two additional trips to the U.K. during his reign, once in 2007 with Michiko, and again in 2012 for the Queen's Diamond Jubilee.

For her part, the Queen also made a State Visit to Japan with Prince Philip back in 1975, during Hirohito's reign.

Queen Elizabeth and Prince Philip show Naruhito (then a Crown Prince) around Windsor Castle in 2001. ADRIAN DENNIS Getty Images

The tiaras may come out.

Usually, when the Queen hosts a State Visit, one of the events on the itinerary is a banquet at Buckingham Palace. Guests are expected to dress to the nines, wearing their royal orders and plenty of jewelry.

The Emperor and Empress will stay at Windsor Castle.

The royal couple was originally slated to spend nights at the royal residence, so it seems likely that they'll do so when the state visit does finally take place.

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