well, an update to this situation. It looks like the purchase was done last year, since the first 8 of the 16 have already been delivered. The J-7 assembly line should be done after this order + the remaining plaaf orders. I'm guessing it's getting converted into a JF-17 line.
A picture of F-7BG flying in March 29th.
A picture of F-7BG flying in March 29th.