Recently after 26/11 surgical strikes were quite eminent, if india would have had the PAK-FA, it would be the most precise weapon for such purpose.
The "Nuke" option is a suicide as India wont strike first.
The time has come that Pakistani Thinkers realize that no longer "Nukes are One medicine against all ailments".
How will F16s face PAKFAs when they wont be able to track them?
You are making a grave logical error. You are assuming that it was the lack of a weapons platform that prevented India from attacking Pakistan. Your cruise missiles could also have flown in, unstopped, and taken out installations. You did not lack the weapon systems. You lacked something else. Even after you acquire the FGFA, you will continue to lack that "something else".
Now, the question is, what is this elusive "something else". I am sure different people have different interpretations. Let me just tell you that in my view, it is the confidence that India can wage a war against Pakistan without being
completely destroyed itself. That is what prevented 2002 from becoming a firefight, and what undermined any military action after 26/11.
I am from Lahore. Let me share a small factoid with you. The Pakistan Army runs a housing society for retired officers and also civilians, knows as the DHA (Defence Housing Society). The most recent and upscale phases of this society, which includes residences of serving and retired full Generals, Lt. Generals, Maj. Gens and other high ranking officers, have been situated right at the Indian border. While the city of Lahore is several miles away, these new phases are literally situated a stone's throw from the border with India. A General will not build his house on the Indian border and have his family live there if he thinks an Indian attack on Pakistan is likely. This is confidence not just in words, but in actions, on the ground.
Now you can talk about the FGFA or other platforms, but at the end of the day, one of the biggest counter arguments to all of this is the reality of Phase VIII, DHA Lahore. Odd as this is, it is living proof of the Pakistani estimate of India's capabilities. We can argue all day, but this estimate - that India has effectively been neutralized - will only be proved wrong the day India attacks. Until that day, let us not fantasize too much about FGFAs and other toys which we think will magically alter reality in the sub continent. The only recent event which massively changed the ground reality in South Asia occurred on 28th May, 1998. And that's cold hard fact.