Tokyo 2020 chief Yoshiro Mori told reporters they were weighing the pros and cons of a summer and spring Games and he expected a decision from the International Olympic Committee (IOC) soon.
“I think perhaps there will be some kind of communication from (IOC) President (Thomas) Bach this week,” Mori told reporters.
The Tokyo 2020 Olympics were due to open on 24 July and run for 16 days, but the coronavirus pandemic forced the first peace-time postponement of the Games.
The IOC and Japan had for weeks insisted the show could go on but the rapid spread of (COVID-19) prompted growing disquiet among athletes and sporting federations.
The Olympics was the highest-profile sporting casualty of the coronavirus that has wiped out fixtures worldwide and all but halted professional sport.
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There was some speculation that Japanese organisers could take advantage of the blank canvas to shift the Games to spring, avoiding the heat of the Tokyo summer that had been their main concern before coronavirus struck.
Due to the heat, the marathon has been moved to Sapporo, a city some 800 kilometres (500 miles) to the north of Tokyo where the weather is cooler even at the height of summer.
But given the ongoing pandemic and need for preparation time, the most likely plan would be for the Games to begin on 23 July 2021, public broadcaster NHK said over the weekend, citing sources within the organising panel.
The postponement has handed organisers the “unprecedented” task of rearranging an event seven years in the making, and Tokyo 2020 CEO Toshiro Muto has admitted the additional costs will be “massive”.
According to the latest budget, the Games were due to cost $12.6 billion, shared between the organising committee, the government of Japan and Tokyo city.
However, that number is hotly contested with a much-publicised government audit suggesting the central government was spending several times that amount on items organisers claim are only tangentially related to the Olympics.