Overall;
No.
A) Too many security issues
B) Poor health systems and poor health in general
C) A&B don't really entice players
D) The economy isn't strong, to actually pay to the NRL salary cap level they'd need to be charging fair old ticket prices which the economy can't sustain
E) There are more pressing issues looking at the Sydney club structure, then we have Perth, Adelaide, Sunshine Coast, Central Coast, Wellington et al to consider for development. They all have the potential for far greater economic business models.
F) Economically it would be a costly venture to fly in and out of Port Moresby. Furthermore, I'm not sure a team of locals is going to find it that easy to relocate here every second week - the Warriors already struggle with it and they're from a developed country with sports scientists still trying to figure it out
G) Poor stadia, there's going to have to be a whole heap of infrastructure put into it. Where's the money going to come from? The Govt seriously can't afford it, it would be irresponsible for either the PNG Govt to expend in this area ahead of every-day life and death issues they face, and completely irresponsible of the Australian Govt to support as again they are in some ways lagging behind some of the other advanced countries in terms of infrastructure development to sustain Australia's boom beyond the mining boom
Sorry, can't see it happening. Really don't want to see it happening either due to the risks involved from either end.