Unfortunately, I sense some of the usual bias against SAC in some of the posts here. Claims are that this SAC J-XX will meet more of the basic 4S requirements than F35, T50.
Such a plane will have a big role in PLAAF.
Most Chinese aviation fans don't like Shenyang. They won most of their contract thru powerful connection. While CAC get the contract mostly because it delivers and meet expectation. WS-10 indigenous delay is also because of Shenyang. J-10B received WS-10 engine that late might be also do with rivalry of CAC and Shenyang.