During an Eva Marie promo, she talked about having a match with Alexa Bliss at WWE SummerSlam on Saturday. As of now, that means that there will be 9 matches on the show. As noted earlier, there is some concern from people in WWE that Sasha Banks vs. Bianca Belair might not happen at the pay-per-view.
UPDATE: WWE has added RK-Bro vs. AJ Styles and Omos for the Raw Tag Team Titles.
As of this writing, here is the card for WWE SummerSlam:
WWE Universal Championship
Roman Reigns (Champion) vs. John Cena
WWE Championship
Bobby Lashley (Champion) vs. Goldberg
Edge vs. Seth Rollins
WWE SmackDown Women’s Championship
Bianca Belair (Champion) vs. Sasha Banks
WWE Raw Women’s Championship – Triple Threat Match
Nikki A.S.H. (Champion) vs. Rhea Ripley vs. Charlotte Flair
WWE SmackDown Tag Team Championship
The Usos (Champions) vs. Rey and Dominik Mysterio
WWE United States Championship
Sheamus (Champion) vs. Damian Priest
Drew McIntyre vs. Jinder Mahal
Eva Marie vs. Alexa Bliss
WWE Raw Tag Team Championship
AJ Styles and Omos (Champions) vs. RK-Bro