Not necessarily. The point isnt in increasing production rate as much as it can go but settling the needs of a customer, in this case plaaf and planaf, and devising the most cost efficient production plan and production rate. We're talking probably about 10 year long production plans, if not longer.
It is actually likely the j11b production reached its peak some time ago and it isnt cost efficient for the customer (plaaf) to demand SAC to raise it any further.
we had a first regiment operational back in 2008. And today, in 2013., we might be seeing another regiment standing up, if these recent images are true. That would be 6 regiments overall. And some 140-150 j11b/bs produced altogether. In some six years. Production rate seems to be hanging at little over 25 per year.
Similar thing can be said about j10. manufacturer can produce 100 planes a year, if customer pays him. Maybe it would take two-three years to get the added production going, but it would be doable. Trouble is, it would come at such an extra cost that no customer is ready to pay for that. Why get 1000 new J10 in 10 years? What to do with those planes currently in service which are just 10-15 years old? Customer requests are tailored so the new planes replace old ones when old ones are ready for retirement, not earlier than that.