WWE legend John Cena is all set to retire this weekend at Saturday Night's Main Event XLII, competing in his final bout against the Last Time is Now Tournament winner, Gunther.A huge number of fans will be watching the event; it could even break the viewership record, given that one of the biggest professional wrestling superstars is retiring.The Triple H-led creative team has been working tirelessly to craft a must-see event. That said, in this article, we will explore three last-minute changes the company made to SNME XLII for John Cena's final match.#3. The company will host a special showThe Stamford-based promotion is treating this Saturday Night's Main Event on December 13th differently. The company will host a special post-show segment on WWE's YouTube channel following Cena's retirement match event, and this will be the first time in the history of SNME.Superstars appearing on the show, including John Cena, Cody Rhodes, Oba Femi, and more, along with CCO Triple H, could be featured on the post-show.#2. WWE will alter the show presentationAccording to some reports, earlier, World Wrestling Entertainment had been planning for a long time to present the event in retro style to pay tribute to the original SNME from the 80s.Meanwhile, a recent report by WrestleVotes Radio on Fightful Select suggested that the show's presentation could be updated. However, it hasn't been confirmed if the change will only be for this upcoming SNME show or all future editions.#1. Major change with runtimeEarlier this year, Goldberg retired, but his emotional speech and farewell were cut from the programming as the company was bound by a time limit.However, speaking on Wrestling Observer Live, journalist Bryan Alvarez reported that the WWE SNME XLII does not have a fixed runtime. This means the company wouldn't cut the show in between and would give it as much time as required, since Cena's farewell could be emotional and go beyond the time limit.