Just read the below from Meia Nouwens at IISS. She speaks the language and doesn't think there is enough evidence at this time to suggest any moving up of the 2035 modernization deadline. She cites Taylor Fravel as also being dubious.

https://www.lowyinstitute.org/the-interpreter/is-china-speeding-up-military-modernisation-it-may-but-its-not-yet