The H-20 must have gone through some major revisions. That is why it takes a longer time for people to see it. I highly suspect the H-20 has gone from subsonic to supersonic in its last major change.
The rumour is H-20 change back in those years (such heavy redesigns take almost the full development cycle) has changed from subsonic to supersonic.
I have doubts about this because subsonic strategic bomber is important. Subsonic is quieter for next generation acoustic based sensors (only very limited use but for slow bombers leaving a combat zone, acoustics can give away your presence and help in finding you or at least your leaving vector) and much better for hiding thermal signature. Supersonic sure you can now supercruise and that masks heat signature but bombers during the 1970s which were supersonic like B-1 and Tu-160 were also supercruise capable. Yet there was a need for B-2 subsonic stealth.
Subsonic allows you to cruise silently past enemy lines more effectively than supersonic stealth even if radar signature between the two are the same for example, the supersonic bomber's heat signature is higher and its acoustic signature probably is as well.
So if China's H-20 program did 70% of work lets say for subsonic before requirements shifted to fielding a supersonic strategic stealth bomber, I would imagine they may have recycled that work for subsonic. If so then why not make the subsonic the more silent strategic bomber while the supersonic one is the other redundancy. Have both as strategic bombers with slightly different advantages and weaknesses while both will carry future EW C4ISR alternative variants if possible and suitable. One loiters for longer and is quieter, one dashes into combat zones faster and has speed as extra survivability.
The previous regional supersonic strike JH-xy and the strategy subsonic flying wing bomber can become two strategically ranged subsonic and supersonic.
This is of course pure speculation. We know China goes all out and hasn't got much issue with funding. Once they build something they build thousands and open many production lines. It's not beholden to MIC financial blackmail like the US where MIC players can charge the country $1000 for toilet paper and cups.
Just like with manufacturing cars, electronics and basically any consumer product, mass production is the key. The CPC can purchase both platforms and perform economies of scale. Energy supply is plentiful even within China and especially with almost as much renewable sources constructed than the rest of the world combined in energy generation. Secure lines to Iran, KSA, Russia in case of war and plenty of own strategic reserves within country if any routes are blocked. Russia supplies plenty of raw materials, in the meantime Brazil and Australia do as well. In case of war where Brazil and Australia options are closed, there are strategic reserves enough for years of high intensity war not to mention scrapping. China has more steel in country in reserve processed and product form than the rest of world combined. Scrap a few buildings and there's 1000 H-20's worth of steel material. Everything else China actually has reserves of on its own or comes from Russia. Mostly steel is the issue.
