#4 The Elimination Chamber
Presently, details on the venue and date for WWE's Elimination Chamber 2019 PPV are yet to be confirmed. Nevertheless, it goes without saying that the Elimination Chamber matchup -- both for the men and women respectively -- holds a ton of significance in the WWE's annual lineup of shows.
After going 1-1 against either of the two top Superstars on RAW today -- Seth Rollins or Elias -- John Cena could face either of them at the Elimination Chamber PPV in a singles match. Alternatively, Cena and Rollins/Elias could perhaps be booked as one of the seven Superstars who'll compete in the Men's Elimination Chamber Match -- most desirably with the WWE Universal Championship at stake.
All signs point towards Braun Strowman or Drew McIntyre holding the Universal Title around the time Elimination Chamber comes around, likely in February of 2019 -- And having Cena eliminate the reigning champion, and then get eliminated himself, would serve to enable Cena to enter a new rivalry with either "The Monster Among Men" or "The Scottish Psychopath"...