Gibson had been part of a 15-strong squad named for the Trent Bridge Test, which Australia won by 89 runs, alongside her Western Storm team-mate Lauren Filer, but did not make the final XI while Filer impressed on her international debut, taking four wickets for the match before making way for fellow quick Wong in the T20I squad.
Maia Bouchier, Alice Capsey, Freya Davies, Charlie Dean, Sarah Glenn and Lauren Winfield-Hill, who were part of the squad which travelled to South Africa for the T20 World Cup in February, were all selected in the group of 16 ahead of the first T20I at Edgbaston on Saturday, with Wong recalled after missing out on selection for the World Cup. Gibson was Western Storm's joint-highest run-scorer and leading wicket-taker in this season's Charlotte Edwards Cup and was a travelling reserve for the Women's T20 World Cup.
Selectors wanted to rest Filer, the 22-year-old quick who impressed with her raw pace while bowling 33 overs in all during her international debut at Trent Bridge. She took 2 for 99 in the first innings and 2 for 49 in Australia's second innings. Tammy Beaumont, who scored a double-century in the Test but has not played a T20I since the last Women's Ashes series in January 2022, was again overlooked in the shortest format.
The Edgbaston fixture will be followed by T20Is at the Oval on July 5 and Lord's on July 8, then three ODIs with England needing to win five of the remaining six matches if they are to win the Ashes for the first time since 2013-14. Having secured four points from their Test victory, Australia need to win only two more matches to draw the multi-format series and retain the Ashes.
"Danielle Gibson is selected for the first time in our T20I squad, she is in great form at regional level and has the potential to impact the game whenever she is called upon. Issy Wong returns to the T20 squad after her success in the Women's Premier League with Mumbai Indians, it will be exciting to see how she has progressed and grown from those experiences."
England T20I squad: Heather Knight (capt), Lauren Bell, Maia Bouchier, Alice Capsey, Kate Cross, Freya Davies, Charlie Dean, Sophia Dunkley, Sophie Ecclestone, Danielle Gibson, Sarah Glenn, Amy Jones (wk), Nat Sciver-Brunt, Issy Wong, Lauren Winfield-Hill, Danielle Wyatt
England Women A squad: Georgia Adams, Hollie Armitage, Hannah Baker, Alice Davidson-Richards, Kirstie Gordon, Eva Gray, Bess Heath, Ryana MacDonald-Gay, Paige Scholfield, Grace Scrivens (capt), Bryony Smith, Linsey Smith, Mady Villiers