I'm not based in China, so this concerns me little.
However, for the likes of the Guancha Trios, Cute Orca, Shenhua, @万年炎帝, @勤劳朴实罗素历, @洋务先驱张之洞, @Captain小潇 etc - This can mean from "Well, we'll just be more careful with what we talk/post regarding the PLA development from now on" to "Damn, we can only talk about publicized historical stuffs now, not even current developments?!" - Or anything in between.
TBH, we still have to wait and see how these new restrictions are implemented and enforced, and how far the MSS would like to go with them. Maybe we might even see the PLA watching space getting cleaned up in China for good (i.e. axing those grifters and retards like 落总师, @听风的蚕 and @荒漠胡杨的金银花2022 which are literal cancers of the PLA watching space)?
Though, one thing is likely certain: China-based PLA watching will not be the same from March 1st.