#4 John Cena becomes a 17-time World Champion
Let's make this clear - John Cena surpassing Ric Flair to become a 17-time World Champion is inevitable.
While it should have happened way back in 2018, next year might very well be the one Cena creates history. I mean, WWE owes it to the man who carried the entire industry on his shoulders for nearly a decade.
While this may seem a bit far-fetched now, given Cena has transmitted himself into a part-timer, I could see WWE having him win that elusive 17th title in the fall of 2020 (SummerSlam, maybe). The Leader of Cenation could then go on to drop the title against a Superstar like Drew McIntyre or Andrade.
Furthermore, according to recent reports, John Cena wants to do something substantial at WrestleMania 36. Thus, WWE could use this as an opportunity to lay down the breadcrumbs for a potential title run for Mr. Hustle, Loyalty and Respect in the latter part of 2020.