It was confirmed following All Out that Kylie Rae has requested and been granted her release from AEW. Tony Khan (President/CEO of AEW) confirmed this when asked by Sean Ross Sapp:
I asked Tony Khan about Kylie Rae's status. He told me she asked for her AEW release and they granted it. It was amicable, per Tony
— Sean Ross Sapp Of Fightful.com @ All Out (@SeanRossSapp) September 1, 2019
It should also be known that Rae has not appeared on any programming or in the ring at events since Double or Nothing. In the time since, Rae has also deleted her social media accounts. She was also supposed to appear in the Casino Battle Royale match and according to an unconfirmed report, was backstage for All Out.