In the main event, Eddie Edwards defeated Ace Austin, Trey, Eric Young, and Rich Swann (the last two being unannounced participants) in a five-way elimination match to win the vacant Impact World Championship.

The event also marked the Impact debut of Heath and the return of The Motor City Machine Guns (Alex Shelley and Chris Sabin).

[3] On Night 2 of Rebellion, Tessa Blanchard was due to defend the Impact World Championship against Michael Elgin and Eddie Edwards in a three-way intergender match.

[6] However, on the following week's episode, it was announced that Blanchard would defend her title against Elgin, Edwards, Austin and Trey in a five-way intergender match at Slammiversary.

[7] On June 22, Impact Wrestling released a statement announcing that alongside the termination of Dave Crist and Joey Ryan's contracts with the promotion, that Elgin had been suspended indefinitely pending a further investigation into allegations of sexual assault made against him.

[9][10] On the June 30 episode of Impact!, it was announced that Austin, Edwards, Trey, and a mystery opponent will face each other in a four-way match for the vacant title at Slammiversary.

The two eventually formed a team, that Swinger called "The Finesse and Bench Press Express"; though it was mostly as a way to get Bey to another X Division title shot.

Rosemary, Nevaeh, Susie, Kiera Hogan, Taya Valkyrie, Tasha Steelz, Alisha Edwards, Kylie Rae, Kimber Lee and Havok were announced to compete in the match.

[16] On the July 7 edition of Impact!, former TNA Knockouts Champion Madison Rayne announced during an episode of her chat show, "Locker Room Talk", that she would be returning to the ring to also compete in the gauntlet match.

Once Dreamer recovered from the assault, he cut a promo on Moose, claiming that he "lacked the passion and drive for his profession, despite having the God-given natural talent".

After the confrontation, Impact announced that Dreamer and Moose would face each other for the TNA World Heavyweight title at Slammiversary in an Old School Rules match.

[27] Many names were teased, including the reunion of Team Canada with Michael Elgin, Heath Slater,[28] D'Lo Brown reuniting Aces & Eights,[29] Luke Gallows and Karl Anderson, and Super Eric.