There are a few decent Reddit competitors out there. If all of the services impacted by the Reddit API changes switched to supporting a new singular alternative we might see enough traffic movement for something real to permanently result.
Also, I don't know about the legality/ethics of it, but it would be really cool to see Reddit Moderators work with someone to mirror reddit submissions to Lemmy. At the very least it would promote further discussion of who owns the content of reddit.com, as curated entirely by volunteer mods.
I asked Christian (Apollo) about it and he decided to ignore that question. It would be cool to have an open source “plugin” for Apollo to translate, for example, lemmy to Apollo’s internal API. I expect it to boost lemmy development as well.
Sounds great, but these 3rd-party apps are designed to use the Reddit API, so I don't see how they could be made to quickly use any other service unless they just throw up a big banner saying "We can't use Reddit any more because they've closed their API to us, so we recommend you try out $service instead! Sorry, but this app isn't written for $service's API, so you'll just have to navigate there with your web browser."
It would probably take a fair amount of time to make new versions of these apps for a different service's API.
AFKARS, is the name, if I recall the amusing acronym correctly.