#2 No chance: Baron Corbin
In 2019, there's only a small handful of Superstars who get to main event Pay Per Views, and Baron Corbin is one of them. Headlining both Extreme Rules and Stomping Grounds, this has led to many critics of the former RAW GM fearing that he will one day headline The Show of Shows.
Many critics have even claimed Corbin has 'go away heat', meaning fans simply don't want to see him (not even getting beaten up). Given this potential backlash from fans, if the WWE picked the Constable for the main event spot at the biggest show of the year, Corbin should be satisfied in high-stakes mid-card matches at the event. Though Corbin did get a huge win this year, ending Kurt Angle's legendary career, the main event is a step too far.