TBH, provided that this plan actually does go through - If there's one thing that the Jai Hinds "win" versus China, it'd be this.
Like, what's the purpose of retaining the J-7s in the high double-digits if not in the low-100s in the PLAAF for? There are no other modern combat warplanes in the PLAAF that is single-engined other than the J-10 family, and there will never be manned single-engine combat warplanes in the PLAAF, going forward.
The trainer fleet should've been fully converted to the JL series by now, and not clinging onto holdovers with origins in the mid-Cold War era.
This is especially as we're already in the "J-35A should start replacing the J-10(A/B) family" stage now, there really is no more reason to retain the J-7s.