SinoSoldier
Colonel
Some more cryptic illustrations seem to suggest that a new engine (WS-15 presumably, given the saw-tooth nozzle edges and TVC in the illustration) has undergone testing aboard a J-10.
But these two things might not be related in the first place, so as usual, wait and see.
But these two things might not be related in the first place, so as usual, wait and see.