I wouldnt compare it to SL as it would only be for one club....
Not necessarily.
I think most would agree that the genesis of what lead to Super League was the competing philosophies of the corporate money focused Broncos and the pseudo-holistic NSWRL what's best for us approach, leading to conflict.
Every fire starts with a single spark.
The comparison would actually be:
Souths Model (best case): an owner comes in, cuts out the dead wood while maintaining and promoting the best parts of the clubs history. Moves them to a better location, and engages a larger fan-base.
GC Gladiators (worst case): Lunatic rich guy steps in, changes everything without really thinking about the consequences to the branding, fan base. Gets into fights with everyone involved then gets bored and f*cks off, leaving a smoldering ruin behind them.
Even with the risk, I would roll the dice on it and just have plans incase it goes bad.
Or option three, and in my opinion the most likely outcome, the American comes in and tries to run his club how your average owner in the NFL, NBA, MLB, or NHL, would run their club, as the final authority without much regard for any of the other stakeholders.
Which would inevitably lead to him putting not only the clubs current fans noses out of joint, but the NRL, local governments, and other groups as well as they will have never really experienced a sports club owner like that.
I mean, the first major thing that an American owner would do if they bought e.g. Manly, is threaten to relocate the club unless the government knocks down Brookvale and builds them a new modern stadium to the owners standards and with a rent deal in the clubs favour, and if he didn't get his way he'd have a line of governments/businesses/groups ready to give him everything he wants to move to their city/stadium.
Don't get me wrong, I'm not against it, I'd love to see how a rich American owner would do things, and I think it's more likely than not that any disasters that he did create would turn out for the better in the long run.