According to a news report published in today’s (January 7) edition of English daily ‘The News’, PIA is considering to operate flights to Sydney with Boeing 777 aircraft.
yea!
YEP 
Pakistan international airlines should operate its services to Sydney by this year 
One more thing i forgot to mention in this subject.
PIA will soon introduce Boeing 777 aircraft on flights to Beijing.
Currently PIA offers twice a week service for Beijing and Tokyo with Airbus A310-300 aircraft.
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Thursday flight PK-852 on Karachi->Islamabad->Beijing->Tokyo route.
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Sunday flight PK-852 on Lahore->Islamabad->Beijing->Tokyo route.
Routes like these, where they won’t be competing against the Gulf carriers for Pakistan-bound or originating carriers will be much better for PIA than their current routes to North America where they compete with the Gulf carriers who constantly flood the market with seats.
There currently is no nonstop service between Pakistan and Australia and the natural connection points like HKG are high cost and probably a lot of people would like to avoid BKK due to the repeated civil unrest there.
Also, KHI-SYD is only 6800 miles. By comparison to get to ORD they’re flinging their 777’s 8200 miles AND splitting the available seats with BCN. The only question is if the Pakistan-SYD market is large enough to support the flight.
Looking around Sydney there are 3.9% Muslims living there.
I think PIA will have good load of passengers from Pakistan to Sydney
Much of Sydney’s Muslim population is from countries in the Middle East, particularly Lebanon and Iraq, along with Indonesia and Malaysia, not South Asia (with the exception of Sri Lanka).