It looks like the days of a domestic jet service are coming to a sad end, dictated by the runway limitations and lack of upkeep/upgrade on the current strips. It is sad that the government allows this to happen, nothing against turboprops, having flown F27, Dash 7 and F28 domestically for PX, but the "smok balus" is definitely a better option.
The traveling population of PNG is constantly increasing yet PX is dictated to buy smaller, slower aircraft due to the runways, to me this is a great disservice to the people. Any hope of getting the domestic airports upgraded for B737 or A320 type operations is unfortunately fast becoming a pipe dream.
