In my opinion, it was gonna die. ROH management was fumbling hard and that partnership was propped up almost entirely by NJPW and Bullet Club. Anything's possible but I believe the hype was gonna dry up eventually regardless, especially once the pandemic hit and the economy in Japan took the hit that it did. Highly unlikely that core group of guys would have stayed together anywhere else besides AEW and I shudder to think how things would have turned out if that whole core had ended up in WWE. I really doubt there's a better outcome than AEW coming about and continuing the legacy of that iteration of the Bullet Club, continuing to partner with NJPW and regularly, to this day, putting out matchups that feel special and almost unimaginable a few years ago.