I think J-10 production will continue
Big duck = J-20, duck is chinese for canard.
Big yellow duck = that one J-20 that flew with yellow primer paint
Little duck = J-10
Overall take according to this rumour:
The first production run of J-20 is powered by AL-31, although this author claims it has been modified somewhat by China which result in some minor performance improvements.
The prototype J-20 in yellow primer paint is in fact a prototype J-20A, powered by two WS-10 of some sort, totalling 14 tons of thrust each. It's not clear if J-20A will have TVC nozzles at this point. Twin WS-10 allows supercruise. In addition this resulted in increase in size of the main weapon bay which allows the J-20A to carry six PL-15. Rumours of a twin seat version is false. The rumours of 4 production lines for J-20 is false, instead they will be built at a new facility which is nearly ready. Once J-10 production ends their production line will also be switched to J-20.
Take this rumour as you will