On the one hand, Shaanxi AC has never produced a turbofan-powered aircraft before, so it's going to be a large undertaking for them (should this rumored/claimed project become a reality). In addition, it should be noted that the KJ-20/3000 is produced by Xi'an AC despite being a special mission aircraft.
On the other hand, if Shaanxi AC can relieve the workload of Xi'an AC (as they're already getting their hands full with the Y-20B, MA60/600/700, the upcoming H-20, and the upcoming Sino-C-5) by taking over the production of this rumored/claimed common platform aircraft, then it's certainly a good thing.