#2 Brother Nero returns as a heel and joins the Viper on his sadistic mission
Jeff Hardy's bout with Randy Orton at Hell in a Cell was a fantastic blend of characterization and in-ring quality. With the Apex Predator erasing the enigma, the former U.S. Champion might be in a very dark space that could coerce him to follow Orton in his mission.
Bringing the Charismatic Enigma as a heel would definitely bring more intrigue and anticipation to the blue brand.
With Randy Orton hell-bent on victimizing his opponents, Brother Nero could walk the same sadistic path and channelize his dark demons to form an exceptional tag-team.
In such a way, WWE can bring some fresh additions to the tag-team division and tell a fantastic story before it all culminates at WrestleMania 35, with Hardy getting his revenge.