India has S-400 and USA won’t allow India to have F-35. USA has already offered F-16 and F-18. I doubt that India will go for America plans. India might get the technology from Russia/France and develop Tejas block 3.
As far as PAF or PAF planner are concerned, they are satisfied with JF-17 block 3 and it should be enough to handle anything in Indian arsenal. However, they are hopefull that USA will allow Pakistan to purchase 18 - 24 used F-16 next year but our relationship is not good. I am not sure how things will play out if Biden wins the election.
There is a old saying
,
everything is fair in love and war
you are just not knowing deep and just trying to prove what you think can benefit pakistan and that's the biggest fault in your POV, dear brother!
USA, has no problems, if india, Israel gets S400S from Russia cause both are bieng thier long term strategic partners?
But if Russia sells it to turkey, Pakistan, Iran USA will be angry and will block it or at least will try to block it?
It's not that S400S are from outer space thing, but the main thing is strategy, countries which USA wants to keep its long term allies, will be allowed as they ill be open to share whatever is in the S400 and also those countries aren't any threat to usa in long term?
Now Russia is playing a very great game here, which is to sell india a degraded or a system covertly desinged with some softwares to not to. Work untill Russia wants it or in other words Russians will be giving a S400 to India with a kill switch as they see it as a future threat as usa long term allies? which I'll be against russian intersts but at the same time as a part of another long term strategy Russia wants to keep india, depending on russian weaponry and which india knew very well and is trying very hard to get away with, RAFAELS , apaches, Chinooks are quite a few of its recently shoped list but still 70% of its airforce has to get upgrades and spare parts from Russia, even Indian army's 60% weapons are russian origin!
So America sees no probelms india having a S400, as they can look deep into that which india will nevr object and at the same time giving india its degraded versions with kill switchs its F35s variants!
Because their frist post against China is india and they don't want India fell to it any way!
But leme tell you a new secret talks on a deal going on in Israeli capital, which is to give F35s degraded versions with Israeli pilots flying them to both UAE and INDIA.
Dont ask me any links, cause these aren't are the news from any news site and all are just from underworld, from which I hve to deal sometimes for my small business for some angels
Why project AZM was started and why it's twin engines, if you can dig deep then you ill know that Pakistan doesn't need any F16s anymore no matter trump wins or not Biden wins or both lose?
Future of PAF is rightly, planned on a twin engine deep strike fighter aircraft be it a 5th gen if posible and I think, it may become possible after year a or 3, PAF is been talks with Russia since a long time and it may get it's fighter jets with some TOT and a joint venture on a 5th ++ gen fighter jets
And bring China, pak, Russia a joint venture altogether that's the closest I can go cause after that it's a dangerous red line, what pakistan wanted to get out of VIPERS we got it already.