"Li Gang, the Chinese test pilot who first took the controls of the J-20 Mighty Dragon, was asked this month during an interview with the Hong Kong-based Phoenix TV, about his expectations on the future development of the fighter aircraft.

"He confirmed that it would soon be equipped with engines with 2D thrust vectoring nozzles, giving it maximum maneuverability."

https://asiatimes.com/2021/06/zhuhai-2021-to-draw-plas-latest-greatest-warplanes/