The way Pakistan and China is extending our cooperation and the way India and America are becoming hand in glove, it is most likely that Pakistan will induct next gen fighter a lot earlier than you anticipate. J-10 is already coming with TOT and it is no way a left out technology of China. When we can produce J-10s to meet our requirement of future induction, why do you think we cannot do the same arrangement to meet more of our security requirements?
Dude, There is a Huge Huge Difference between Fifth and Fourth Gen Fighters.
J10s have been here since 2003 ( in Production ) but you have still NOT recieved a single unit ( ie. + 7 Years ).
Fifth Gen Technology is Still under development, Russians who are ACTUALLY TESTING their Bird, say that Many Technologies are being tested for the First Time and a Good 10 Years is needed to mature this Technology.
So a Nation , The ONLY nation that has developed all kinds of planes with tech, apart from US is 10 Years away from getting a Final product, with their Prototype Ready and is Under testing in 2010.
What will u predict about China? They still have Nothing Solid on the Ground.
Plz dont translate this to questioning of Ability of Chinese But Things will be delayed Unless China finds Means to get Things Developed at Different Pace.
Coming Back to u, I must assure you that The Chinese and Indians will get Fifth Gen Fighters at almost Same Time but Pakistan will get it Atleast 10 Years later, NOT before 2030.
As You just saw, J10 started into production in 2003 and you will get it in 2011-2013 ie +10 Years Dealy from Production to Supply.
Now it will be Perfectly safe to assume That China wont Hurry ( for any odd reason ) to Give Out Its MOST HI TECH Weapon earlier than it Did, for a Product ( say j10 ) Equivalent of which Pakistan Already Has ( F16s ).
So if China Starts Production in 2020 You shall get it in 2030.
This is NOT my Theory/Opinion, Im Just stating facts on the Basis of History.