I don't think there's any chance the outcome of this will be allowing the communities of orphaned games to maintain them.
However, I think a good middle ground would be requiring publishers to state ahead of time (and inform customers clearly before they make a purchase) how long they will support their game. They should then be able to extend this period, but also be required to refund customers if they drop support before the initial support period they announced ends. Also, there should be a mandatory minimal length to the support period (like some countries have a mandatory warranty period for some products).
What’s stopping the foss community from making servers where the games can communicate? There’s already a project in the works for wiiU and 3ds after those console servers shut down.
I might not be able to work on this myself due to my own ineptitude but I know there are people out there smarter than me and more passionate than me who could possibly do it
I'm just saying his proposal to allow the community to maintain and develop the games further (which to me sounds like giving them the source code) probably won't be put into law anytime soon.