#1. Limitless dream rivalries
The reasons mentioned above were focused on how a switch to WWE would help both Kenny Omega and WWE. However, this one is from a fan's perspective. In WWE, Kenny Omega could potentially face a lot of huge names, producing all times classics.
AJ Styles and Kenny Omega are two former Bullet Club leaders that have not crossed paths in any major promotions. WWE could be an excellent ground for such a huge match. Omega could also fight some of his previous rivals like Adam Cole, Daniel Bryan or Seth Rollins. He could even form a stable with his Bullet Club stablemates in WWE.
Kenny Omega vs. Finn Balor, Kenny Omega vs. Samoa Joe, Kenny Omega vs. Ricochet - the matchmaking possibilities are limitless. Even a WWE version of Bullet Club pitting against The Undisputed era and Sanity is a mouth-watering prospect.