I think the AL-41F-M2 was Deino's hypothesis (He owns the patent ). Another one was that the J-20 LRIP used AL-31F modified locally (In China). For CAC to quickly move away from AL-31F to WS-10 suggest some serious reliability issue with the older engine. It shows how far the WS-10 has come from the problems it faced in the mid-2000s. The loss of some thrust in afterburner may be acceptible if reliability is much better. And remember, when it comes to supercruise, what is important is the dry-thrust. We don't know the dry-thrust of the WS-10. AL-41F1S dry thrust is 86 kN.***
The J-20 LRIP variants used AL-41F-M2 variants (?) with around 14000 kgf thrust ( I'm going with the conservative AL-41F-1S for a ballpark figure
Dieno corrected me by putting a thrust range of 128 to 145 kN ! for the WS-10 series. I am in no position to cross him ( or you ftm). Let's just leave the thrust numbers as it is . I do want to add accurate thrust numbers though.