The latest rumor is both CAC (J-20 derivative) and SAC (J-35?) will build its own stealth shipborne fighter prototype simultaneously and let the real stuff compete side by side!
What? Sorry, but I need some more explanations ... I thought a navalised J-20 is dead since years and now you said, the SAC J-35 (?) already flew? May I ask, who noted this rumour since I've read nothing more since your update?
And how long will it take for a CAC J-20X to be developed?