Cummins heading to Hong Kong
The 28-year-old outside back replaces Henry Hutchison, who has failed to recover from a minor foot problem.
Cummins won the last of his eight World Series caps in May 2007 and last represented Australia in the abbreviated form of the game at the 2010 Commonwealth Games in Delhi.
New signing Frank Winterstein will also travel with the squad that heads to Hong Kong on Monday as the 13th player.
The 41st Hong Kong Sevens kicks off next Friday – with Australia drawn in Pool C alongside the United States, Argentina and Portugal.
Australia: Nick Cummins, Tom Kingston, Sam Myers, Lewis Holland, James Stannard, Con Foley, Cameron Clark, Stephan van der Walt, Ed Jenkins, Allan Fa'alava'au, John Porch, Boyd Killingworth.
Thirteenth player: Frank Winterstein.
