The latest episode of WWE RAW marked John Cena's final appearance on the red brand as an in-ring competitor. The Cenation Leader was interrupted by the former Intercontinental Champion Dominik Mysterio, who challenged The GOAT to a rematch for the title at Survivor Series: WarGames, which Cena accepted. That said, it appears that The Never Seen 17 will not be participating in the Men's WarGames Match, as the lineup for the bout has seemingly been confirmed on RAW following the returns of Brock Lesnar and Roman Reigns.Many believe Cena should be in the match, as this is his last chance to do so. While he isn't slated to participate, the Triple H-led creative team could utilize these three possible ways to make changes to the WarGames lineup and add John Cena to it:#3. By having one member of Team CM Punk mysteriously attacked before the matchIf one of the members of Team CM Punk gets taken out of the match at the last minute, John Cena could step up to replace him. The most likely participant to be removed from the bout appears to be Jimmy Uso, who could be mysteriously attacked backstage, deeming him unable to compete.Being the heroic figure that Cena is, he could join forces with the babyfaces as Big Jim's replacement to fight Team Vision inside WarGames.#2. Jey Uso and Roman Reigns could force Jimmy Uso to step down from Team CM PunkLast week on SmackDown, when Jimmy Uso told Cody Rhodes and Jey Uso that he would be joining the team at WarGames, Jey's reaction suggested that he wasn't on board with the idea. While the twins seemed to be on the same page on RAW this week, it may not last long.Now that Roman Reigns has also joined the team, he could reunite with and influence The YEET Master once again. Jey, believing that his brother is a weak link, could force Jimmy to step down from the team. The tensions could escalate between the OG Bloodline members, leading to Big Jim walking away.To fill the void, either CM Punk or Cody Rhodes could ask John Cena to be on the team, who may have no qualms about accepting the offer.#1. By having Brock Lesnar attack John Cena once againBrock Lesnar made a shocking return to WWE by taking out John Cena with an F-5 in the closing moments of SummerSlam Night Two. The bitter rivals collided at Wrestlepalooza, where Lesnar picked up a one-sided win over The Cenation Leader.Lesnar had not been seen on television since the bout until this week's RAW, where he returned and joined Team Vision. That said, there has not been a satisfactory conclusion to Cena and Lesnar's rivalry, something that needs to happen.The WarGames Match seemed to be the perfect opportunity for the two veterans to lock horns once again and for Cena to get his redemption. While both of their matches are decided, things could still change if The Beast Incarnate launches another attack on Cena following the latter's bout against Dominik Mysterio at Survivor Series.Later in the night, The Franchise Player, motivated to get his revenge, could ask Team CM Punk to offer him a place, so he could get his hands on Brock Lesnar inside WarGames. This would allow John Cena to conclude his feud with The Beast Incarnate on a high note.