I find it interesting that a seasoned fighter pilot who has over 3,000hrs on the F-16, who has been to Red Flag & flew that ACM on last years flypast would end up flying the JF-17. He was with the No. 9 Squadron (Griffins) and now most probably an Instructor in the No. 5 Squadron (Falcons). The patch (below) is the one he now wears.
No. 5 Falcons Multi-role Squadron
Assuming PAF would not go behind enemy lines (India) and use it against them. Its already been mentioned that PAF can use the F-16's to defend the sovereignty of Pakistan. (If) the IAF entered Pakistan Airspace than it would be fair game for the F-16's to engage them.
When I said it was my opinion, I meant it because like everyone on this forum - I don't have all the details/facts.
Do I believe a JF-17 can take out a Mig-21 (Bison)? - Absolutely
Do I believe a JF-17 (Block II) can hold its own against a Mirage-2000? - Perhaps
Do I believe a JF-17 (Block II) can engage in a dogfight engage/takeout a Su-30MKi? - ...maybe if it were a Block III