FIFA added that a new schedule would be unveiled "in due course" after further talks with CONCACAF officials, confirming only that the first round would be in March.
"We have a task force that is looking at all aspects of Games organization in order to help Tokyo to simplify the delivery for two main reasons," Dubi further explained.
In Castellon on Saturday, after a foul in the opening round, she landed at 14.47m in round two and almost matched that in the third round with 14.42m. The 24-year-old saved her best for the last round as she leapt out to 14.71m.
Williams will take on Bulgaria's Tsvetana Pironkova, who overcame Alize Cornet of France 6-4, 6-7 (5), 6-3 in another round of 16 match.
This year, world number four Kenin counts herself among the top players, but the challenge won't get any easier as Tunisia's Ons Jabeur, one of the most in-form players of 2020, awaits in the next round.
The International Army Games 2020 was held in Russia, Belarus, Armenia, Azerbaijan and Uzbekistan from Aug. 23 to Sept. 5.
"We are carefully optimistic. And when I say carefully optimistic, it's because we don't know what the sanitary situation will be a year from now," said Olympic Games executive director Christophe Dubi in a pre-recorded speech at the World Winter Sports Expo 2020 here on Sunday.
Ruichang defeated Hunan Hualai 4-1 to continue sitting second, leaving their opponents in third place.
In the men's event, Gaspar Csere, 29, from Hungary won the race with a time of 1:06:29, whereas the fastest female athlete was Katalin Kovacs-Garami, 40, from Hungary with a time of 1:18:52. Enditem
Haris Hajradinovic put Bosnia ahead in the 24th minute with a penalty before Kamil Glik's powerful header leveled the score for the visitors just before the break. Kamil Grosicki's header in the 67th minute sealed Poland's win. Enditem
"Our opponents played very well today. We were not decisive enough. In the deciding set, we tried to play our tactical discipline and not be influenced by our rivals. We made it," said Liu.