I would take that bet!
Pakistan has yet to develop an economic base from which to support such a purchase and program. I don't think that China will follow the route of the USA in buying allies by outright paying for their own defense exports.
China certainly is not so rich that it can afford to buy allies by gifting them 5th Gen. fighters. The USA has not given anyone free F-35's, either... Every F-35 buyer is going to pay a whole lot more than they had planned to get their F-35's...
But if Pakistan really is in a situation that they desperately need something like a 5th Gen. aircraft, arrangement could be made, say, via soft loans, etc. For SAC's own sake, they will need to export as many as they can to keep things going.