Fascinating stuff, and from the reports I've read I agree with Watson and Endacott: it's refreshing having some people thinking outside the box, no matter how unfathomable the idea appears to be.
I say appears as perhaps this idea is just way ahead of its time and the way club sports are destined to go? It's certainly beyond my visionary powers.
I would say that SL expansion depends on the member clubs' votes, doesn't it, and not the lower division clubs (not sure, can anyone clarify?). If that is the case then I don't see why they'd all discount Wellington in favour of one of the more traditional clubs.
But, France is more of a concern, and if this Belgian billionaire has such a strong relationship with NZ wouldn't it be more viable to go deep into the labyrinthine NZRL command bunker and not come out until some revolutionary plan had been concocted to greatly professionalise NZ RL to the benefit of the entire game?