With all three major console manufacturers prioritizing backwards compatibility, and the rise in PC gaming (universally backwards compatible), people are starting to catch on to the fact that old games don't "expire" after 10 years. I wouldn't be surprised if backwards compatibility just becomes the standard for all gaming consoles going forward.
Tangential, but I'm also interested in seeing how games that released on old consoles and are continued to be played, like Fortnite, will support aging hardware. I don't like that Epic can one day announce the game just no longer works on that console, rendering your purchases null and void until you upgrade your hardware, but I can't expect them to update that version of the game forever.