We are only a few hours away from WWE Saturday Night's Main Event XLII. This special show will witness John Cena locking horns with Gunther in his final match. Besides this, some exhibition matches between NXT and main roster talent are about to take place. In this article, we will be looking at four last-minute predictions for the upcoming SNME show.#4. Cody Rhodes could defeat Oba FemiWrestlePurists @WrestlePuristsLINKOba Femi to Cody Rhodes: “In the spirit of hustle, loyalty and respect... YOUR TIME IS UP AND MY TIME IS NOW!" #SmackDownIn this special event, the Undisputed WWE Champion Cody Rhodes will face Oba Femi in a Champion vs. Champion match. Femi already defeated Ricky Saints to win the NXT Title and eventually got the match against The American Nightmare.Although Oba is a strong star and has defeated major names, Rhodes is still predicted to secure the victory. Rhodes is a World titleholder, and there's no doubt WWE will put him over Femi in this exhibition match.#3. AJ Styles & Dragon Lee could retain the titleAJ Styles and Dragon Lee are set to defend the World Tag Team Championship against Je'Von Evans and Leon Slater. Although Je'Von is receiving a major push in the company, SNME is unlikely to feature this title change.Styles and Lee are more likely to retain their World Tag Team Titles, especially after The Usos returned to the tag team division and confronted the champions. Also, the rivalry between AJ and Dragon with The New Day is still unfinished.#2. Gunther could retire John Cena at WWE SNMEGunther has already retired Goldberg and defeated him in his retirement match. Given the momentum The Ring General has on his side, he is expected to defeat The Franchise Player in this final bout. The former Imperium leader has already asserted to make Cena tap out at SNME.So, a tragic ending might be waiting for The Cenation Leader's fans this Saturday.#1. The Rock could return to shock everyoneAhead of Saturday Night's Main Event, a wild theory is circulating on the internet that suggests The Rock may return at the special show to confront John Cena. WWE has also shared this theory on its official website.At Elimination Chamber, Cena turned heel and sold his soul to The Final Boss. Around SummerSlam this year, the Last Real Champion became a babyface star, but he has yet to confront the People's Champion.So, a return of The Rock at WWE SNME and not letting Cena retire might unfold at this special event.