They already have shown some interest hence State of Origin being played there.
There’s various ways to grow something and sometimes putting on your flashiest, biggest show piece event (as a stamp of what the end result is) is one way to go about it to begin to gauge interest and as a starting point for an admittedly long road/project towards one day having a full time presence there.
I’d also say that once Perth is up and running then it’ll be destination Adelaide where clubs take games interstate.
From a commercial point of view maybe what holds SA/Adelaide back the most is that it just isn’t a progressive city like Sydney Brisbane Melbourne or Perth. Well, not from a big business and corporate perspective compared to those other 4 capitals. However a thing that is interesting is that when it comes to watching NRL Adelaide metro viewership numbers aren’t far of Perths metro viewership numbers. Perth will instantly jump when the team is going, no reason Adelaide couldn’t either.
@Vlad59 is correct though their junior numbers are low at the current. NRLVic probably needs to concentrate on their own development and pathways and maybe helping NRLSA is a bit too much workload. Maybe NRLWA with some assistance from CRL/NSWRL is the best way forward with SA pathways. That’s just a dart throw guess.
Overall, yes it’s a slow burn but it’s a burn nether the less. That’s why I got them potentially coming in 2050/60. Quarter of a century to get things up and running and be in a position to entertaining a fulltime club is very achievable.