I could be wrong, but I don't think that they necessarily mean that there could be a team from country NSW in the state cups, so much as they mean there could be country NSW teams in the state cups...
I also doubt that they intend to add a Country NSW club to the NRL, and if they do intend to add one club represent county NSW to either or both comps then they'll soon change their minds as they realise all the problems that such a club would face (namely where would it be based, where would it play games, which teams would feed into it, etc).
Though in saying that you might be able to get away with a handful of country NSW sides in the NSW cup though, such as North NSW, South NSW, etc, etc or more realistically regional areas such Southern Tablelands, Riverina, South Coast, North Coast, etc, etc.
BTW, I see no reason why in theory places like Canberra/Queanbeyan, Newcastle, Dubbo, Coffs, Wagga, Tamworth, Bathurst, Albury, etc, maybe even some smaller places that are really strong RL towns, couldn't support Nsw cup sides if the competition was structured in a way that it could support that number of teams of outside of Sydney (which would probably mean conferences, and a reduction in NRL clubs participation in the comp) and they could find the funds to support the club, you'd have to be willing to let some fail though...