> 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.

Traditionally for these "Live Service"-type games, they announce cutting support for a console, but let you carry your purchases in that specific game (subscription, add-on items, etc), forward to the same game on the next gen of that console.

For example, how Final Fantasy 14 ended PS3 support - https://www.gamedeveloper.com/game-platforms/-i-final-fantas... and how Grand Theft Auto 5 ended PS3 support - https://www.ign.com/articles/gta-online-support-ending-xbox-...

It's not a guarantee, but I'd expect something similar for Fortnite.