Its a mixture of couple of platforms, nozzle is of F22 and the wing tail front is a mixture of Sukhoi30 I guess looks good though but PAF will be opting for single engine fighter I guess.
We dont need anymore F16s brother. Our JfT is made on the basis and performance factors of F16s so if you compare it and see any interview of the PAF pilots who flew f16 and JFT they always mentioned that there is not much difference in the performance so keeping that in mind PAF is going well...