I believe that Aero Asia, a privately owned Pakistani airline, has great potentials in it. I think that if Pakistani govt. allows them to expand internationally, then could really earn big profit. Even though they only have 3-5 planes, there reputation on domestic routes is better than PIA! Also, they did have a 707 on their route to Dubai titled "JARO" but I don't know what happened to that.
But I believe that if Pakistani govt. loans them some money so that they can afford to lease two or three A310 or A320 etc, they could start their services to Saudi Arabia, London, Manchester, and New York.
To debrief you, it is a fact that if you want to book a domestic flight with Aero Asia, it is hard to find one seat left for nearly two weeks!