#2 Turn heel
As soon as you saw this headline, there is a good chance that you immediately wondered where ‘turn heel’ would appear in this list.
John Cena's father just broke his silence on his heel turn! More details RIGHT HERE
From 2015-18, almost the entire WWE Universe wanted Roman Reigns to become a bad guy. However, following his leukemia announcement in October 2018, the chorus of boos that used to greet Reigns to a WWE ring has been replaced with cheers.
Some detractors of the former Shield member still boo, of course, but the cheer/boo ratio is approximately 80/20 since his in-ring return in March 2019, whereas it used to be around 20/80.
In out-of-character interviews, Joe Anoaʻi has mentioned that he does not want his illness to define him and he wants fans to continue making noise every time he appears in a WWE arena, regardless of whether they decide to cheer or boo.
With a mindset like that, surely a heel turn cannot be ruled out?