She was attack and backs coach during this year’s Women’s Six Nations before returning to her role with Loughborough Lightning.
But Scarrett has now committed her long-term future to the national side.
Meanwhile, former British number one Jack Draper will have to qualify for tennis’ US Open, after he missed out on a spot in the main draw.
Arthur Fery will feature at Flushing Meadows for the first time, after his run to the Wimbledon semi-finals.
Emma Raducanu, Cam Norrie and Katie Boulter will also be in the main draw next month.
