I originally said I thought it was Fallon.. remember Fallon was giving Thea advice for all of these weeks? She could be jealous that Thea didn't pick her. She could be reverse Tatum paxley or some shyt and end up beating Thea down.
My second guess is it was Jacey and her goon.... but it was a fake attack and this leads to khalani joining up with them and they form poisonous seduction. Because even with Rox turning to the Darkside there's just no room in the goody two shoes lane for Khalani. Plus when she cut that promo for the iron survivor match she lowkey had an arrogant/heelish vibe
All I know is We better not get Thea VS Jacey 1V1 at SAD. So there has to be some type of tag match and why not have it end in an epic swerve.