#3 Styles is due another WWE title run
Given that the WWE championship is what he is best suited to be around, AJ Styles’ storyline has revolved around regaining that belt. And he has proven that he is capable of having a great main event, championship matches at any point.
While the specifics of his contract aren't available, and it is unknown if another title run is actually planned, it seems a strong possibility that he could capture the title and challenge bona fide challengers for the belt such as Orton, Corbin, or even Nakamura.
It is usually difficult to have a face versus face title match, but it isn't impossible, and Styles and Orton are such contrasting styles that it could make for a fairly competitive, compelling match and exciting win for the former champion.