plan B the WS-9 for Xian Aero Engine Group.
Plan B is the WS-13 engine. It’s already certified and in production. What this means is that the 2nd batch of Pakistani JF-17s will have less reliable Engines with higher maintenance costs, but still much better than nothing.
Now for the upcoming Egyptian Deal, I think it’s still very much a toss up between China and Russia.
The Mig-29 will have more reliable engines and a more powerful radar but it would be tied to the Russian weapons suite and an antiquated COBOL based software architecture. If the Egyptians wanted to modify capabilities on that plane they might have to call in Israeli or Swedish defense contractors.
The JF-17 is 20% cheaper than the Mig-29, and I think China might throw in extras such as elimination of software locks, or free weapons integration for both U.S and Chinese A2A missiles.