yes a lot of fighter are to be retired and we know what they will be replaced with, the jf-17 as is intended.There are a few issues. The PAF is looking to replace a lot of fighters by 2020, so to do that it would have to ramp up JF-17 production to the maximum possible. There are risks with that strategy. For one thing, it is expensive, even more so than picking up EDA F-16s (without upgrading them).
There is also a second aspect as well, and that is the fact that the lifetime production of JF-17s for PAF will reach 250-275, but it would do so in the form of many different blocks, each in accordance with the era's technologial trends.
For example, the PAF might stock up on lots of old F-16s from now until 2020, but it may simply replace those old F-16s with new variant JF-17s (e.g. Block-IV, Block-V, etc) as they become available. In other words, JF-17 production will not stop after 2020, nor will it be the end with Block-III, we're going to keep seeing JF-17 in new forms and variants for a long time, even in the 2020s and 2030s.
These new JF-17s would be considerably more advanced and capable than the Block-I and Block-II because they would incorporate the technology of the day as well as developmental changes. By extending the production of the JF-17 into a long-term and gradual process, the PAF would be able to make the most out of its up-front investment, control costs, as well as keep developing the JF-17 platform.
I honestly believe that after 2020, we will see a massive re-design of the JF-17, something akin to what the Super Hornet is for the original Hornet, or the Block-52+ is to the original Block-5, or the Gripen NG to the original Gripen.
more f16's? well i dont know, i highly doubt it, but if your actually paying for it then maybe, but if its subsidized then it will be very hard. but there is something that does not stack up. when it was first proposed last year janes quoted a Pakistani official saying the new jets will be more advanced then the blk 52's. the new jets are the exact same. or is he on about another deal we dont know about? i shall let your imagination take you for a ride.
as for the numbers and the block's? i think its 50 jets per block, but it's not gospel and i can be wrong. but 5 block's of 50 is quite a good estimate. and i would assume a reworked version would be arriving beyond 2020. remember they used the f16 model on the jf-17 with the block's and the ab variants are different for the c/d variants [structurally speaking/as well as technically too]
not gonna work. forget the j10 and the su35.Not talking about another 4th Gen plane, even it does it will be purely for increasing numbers , as many people say J-10's wont be adding any significant Capabilities to our Existing JF block 2 , or F-16 A/B blocks . what i am suggesting that why not do some back door diplomacy to at least try for Su-35 ? recently Russian's sell it to China , despite China and Indian sore relationship, so selling 1 sqs to Pakistan will not make much of a difference , as Indian are all set to buy Rafale , and i am pretty sure there will be a follow up order by IAF of Rafale to make the numbers increase to 50+ .. off course we cant match Indians by Quantity but dedicated sq such as Su-35 for Naval strikes , with 11 Subs with AIP + CM will give goose bumps to IN , and they will think 200 times before they think of a blockade ..
in any way case , Su-35 can be diverted to over Karachi , thanks to their range, they fly as Air Superiority in case we need them .. F-16's Medium , JF light and Su-35 High end Flankers make perfect sense ..
china and russia do huge amounts of business and that alone would be enough justification to ignore india. the rd-93 engine is Russian and india wanted to stop the engine being used on the jf-17 for Pakistan. but Russia was not selling engines to Pakistan they were selling them to china who sold them on to Pakistan. now Russia dropped is self imposed arm embargo on Pakistan they can sell the rd-93 directly to you removing the middle-man thus saving money.
to put it quiet bluntly, who would Russia pick from either china or india as a economic partner?
ok lets say [hypothetically] Pakistan wanted the su-35, its possible but they need cold hard cash. Russia cant afford to give a loan or give an incentive. Pakistan is not stupid nor desperate to get the su-35.