I would shorten and season and use the origin period as an international window. Now, with the growth of the international game, you could easily have solid content around stand alone Origin matches. If you then shorten the season by 1 home game each club you get 2 extra weeks for Internationals. Even in a lite year this would create an opportunity for 6 games for any other nation that isn't Aus. I also think that 1 off tests are not as good as a series or competition because multiple games create a narrative and cohesion so better Rugby League.