Indicators appear to be that MS cannot decide if they should abandon Access, or to enhance and continue with development.
If they issue an end of life they don't appear to have a replacement for the millions of Access users. They abandoned Visual FoxPro and still today there are users out there stuck at 2015. Personally, I'm not happy moving away from a PC product to an online and totally under MS control, alternative. Additionally, there is the issue of recurring unknown costs. If your development environment is online you cannot avoid annual charges, or any increases levied.
So many companies only have access to their accounts systems via unknown datacentres. Something I would not be happy with. Have they effectively handed control and responsibility of their future to unknown organisations without a safety net? Maybe unlikely but in the event of undersea cable damage or hacking by an unfriendly nation, would destroy those businesses if they lost access to their accounts, operational systems and bank accounts.
But maybe MS do not see Access as a large enough future income stream? There does appear to be many at MS who would like to shut it down.