#4 Finn Balor confronts Brock Lesnar and destroys him

This is obviously the unlikeliest of scenarios, but given that it's the go-home show, WWE would certainly want a lot of eyes watching and a lot of people talking. With Brock Lesnar and Finn Balor never going head-to-head before, they may very well confront each other for the first time, and Balor may also use underhanded tactics of sorts to attack Lesnar and get a psychological advantage over him.
One way to do this would be to make him appear as The Demon, similar to what he did with Seth Rollins in the build to their SummerSlam match-up.
Look who just shut down all of Tony Khan's critics! More HERE.
#3 Bobby Lashley loses the Intercontinental title

Last week, Bobby Lashley won the Intercontinental Championship for the first time in his career. He would pin Dean Ambrose to end his rather short-lived IC title reign. While the immediate rematch clause is clearly a thing of the past, don't be surprised if WWE conveniently forgets the rule.
We could end up seeing a heel vs. heel match with Ambrose shockingly reclaiming the Intercontinental title thanks to interference from Seth Rollins.