#2 Face Turn!
At this point, the obvious choice for AJ Styles after a loss of such manner would be to finally turn face once again. There is certainly no doubt in the fact that Styles is a great heel and always has been one. His way of leading a faction in both WWE and his former promotions has always been classy.
As a matter of fact, Styles' feud against some of the best babyfaces on the WWE roster has been absolutely amazing to tune in to. However, this feels like the perfect opportunity for WWE to turn Styles face once again and put him back to his previous roots in the company.
When he first started out in WWE, Styles instantly established his place as a popular babyface. And, after winning the WWE Championship for the second time in the company, 'The Phenomenal One' once again proved how good he is as a babyface.
With Undertaker "burying" Styles, we could potentially witness the latter apologizing to The Undertaker for his harsh words and put all of this behind him to initiate another babyface run in the company.