After hearing the news PAF reject the Chinese J-10. I think its logical PAF did not opt for J-10. Consider PAF already operate the JF-17 which both share quite similar profile despite J-10 being more advance. I dont see PAF going to get another single engine, short legged fighter.
Logical next step will be acquring a big twin engine, deep strike multi-role fighter like Su-35, armed with AESA radar , thrust vector and can carry a large load of ammo. Since China are not allowed to export J-11B or J-16. What China can do for PAF shall be this.
Lenta.ru:
Russian promise Indian they will not export to arms to PAF but never say , it did not allowed third parties to export whatever their toy to who? Just like RD-93 engines.... I believed the 24 Su-35 fighter bought by China will be re-export to PAF. China dont need Su-35. I dont see the logic of PLAAF owning Su-35. The only reason will be China acting as middle man for PAF for getting Su-35.