The WS-15 has already been deployed on the J-20, and it was confirmed by the veteran test pilot of the J-10 just in few days ago. And according to the leaked picture, China is also planning to test the 6th gen turbofan engine on a modified J-20. What do you think about?
Don't bother arguing with that Chinese living in Australia. It is pointless. I laughed really hard when he mentioned the number of positive ratings received from other people ( these people are just other "think - tanks" not normal members).