#4 The fans would pop for Cena
Speaking of Roman Reigns, much like Randy Orton last year, John Cena could actually get a huge (positive) reaction if he were to win and eliminate Roman Reigns.
Even though a lot of fans have become more fond of Cena over these last few years, the duelling chants and chorus singing will still follow Cena through his retirement. But if the Rumble were to come down to Cena and Reigns, Cena would indeed get a big pop for eliminating The Big Dog.
Edited by Nishant Jayaram