The writing is on the wall that Android will not be with us for much longer. At least not as an officially maintained platform. Android is getting bigger and bigger and becoming harder to maintain. Plus Google has been moving to development in HTML PWA (Progressive Web Applications) and lighter weight Go based applications.
Android is a mess. Its big. Its bulky. Its hard to maintain. And it has fragmented implementations. No phone table run Android the same way even on thier own devices.
The plan as I see it is that Google drops Android and Chromebooks support. and unifies their platforms in the Fuchsia OS that same way Apple did with their products. I would see some part of their OS to start closing off. The core will still be open source. But higher performance sandboxes will be closed off. Also look for low cost but restrictive licences for Fuchsia OS to to unify the platform.