I'd still say that we wait till the end of the year before drawing further conclusions.
For what, J-11D or the Su-35 purchase?
For J-11D, I think if we haven't heard any other news of it by October 2017 then we can start to wonder a little bit. Given the development of past aircraft like J-16 and J-10B in previous years and the news and pictures we've had for them at that time, the news we've had so far for J-11D's development is entirely consistent with expectations.
More importantly, it is also quite normal for us to have less news for SAC developments than at CAC, and it's also normal for there to be an initial peak of news in the first year or so of a new "variant" aircraft making its first flight (and initial few prototypes) and then for us to have little news for the next year or so as more extensive testing is carried out.
So for J-11D, I'd give it until October next year until any big calls are made towards its development progress.
For Su-35, I'd say just keep waiting. Rumours and news seem to be constantly popping up about what's supposedly happening. If it's real, then we'll see it in Chinese colours eventually and scores can be settled then with the benefit of hindsight.