#2 Luke Gallows and Karl Anderson must get involved

If the WWE is going to tap into Kenny Omega and AJ Styles' shared NJPW history, they may as well do it properly. That means involving Luke Gallows and Karl Anderson in the storyline. Casual fans already know about Luke Gallows, Karl Anderson, and AJ Styles because their friendship has been established in WWE kayfabe. They memorably spent a portion of 2016 beating up John Cena.
Hardcore fans know about the shared history between these men in NJPW. They know that Gallows and Anderson joined Omega in kicking Styles out of Bullet Club. All the WWE needs to do is establish that Kenny Omega knew Luke Gallows and Karl Anderson in Japan and that Anderson and Gallows are not ready to take sides yet. Depending on crowd reactions, Gallows and Anderson can ally with either Kenny Omega or AJ Styles, thus turning them heel.
This adds to the richness of the story and creates a clear face, and clear heel. It must be remembered that the Shinsuke Nakamura versus AJ Styles match at WrestleMania last year would have been even better if there was a clear babyface to root for, and a clear heel to root against. This ensures that this story does not suffer from the same handicap.
Did a WWE Hall of Famer predict John Cena's heelish ways long ago? More details HERE.