WWE originally had plans for a Kalisto vs. Baron Corbin match at last Sunday’s SummerSlam pay-per-view but with more a dozen other matches scheduled, they ended up getting dropped from the card.
Regarding Finn Balor’s WWE pay-per-view debut, it was always scheduled to happen at SummerSlam but original plans had him facing Chris Jericho as Roman Reigns vs. Seth Rollins was the planned title main event. Original plans also had RAW getting the main WWE Title and SmackDown getting what is now the Universal Title, won by AJ Styles.
Reigns’ WWE Wellness Policy violation changed those creative plans and WWE made the decision to put another babyface in the top RAW slot, pushing Reigns down the card as punishment.