If J-20 can run off ws-10s I don't see why J-XY can't
You will have to run it off from a single WS-10 or better yet WS-15. However this means you have to redesign the air frame which can add years to the development. The result makes it more F-35ish.
Having the same engine commonality would be however, great in the long run when it comes to logistics as you would be standardizing on the WS-10/15 engine family and the established support infrastructure around the WS-10.
If I were PLAN admiral I would have ordered development of such a variant long ago.