Unofficial extensions are still being updated. I’ve got working bato and everything. Haven’t run into issues so far. I’m not sure how this korean company got to them or why, since they’re not even hosting the content. But either way, things should be good for now.
Tachiyomi is too good to fail. It’s the best manga reader that has ever existed. It’s open source. If they need to offload extension support onto less organized entities, then so be it. The community isn’t going to disappear.
There’s already dozens of forks. There was before all of this even started. Sad to see it go, but the app itself and how it functions will pretty well certainly go on. Tachiyomi isn’t even an app that needs routine updates, it’s the extensions that do. So existing setups will probably work indefinitely so long as extensions continue getting updates…
So, sounds very “oh fuck” but for end users probably means literally nothing changes. Unless something breaks the functionality of the app, which really just means the reader and library and everything, it doesn’t need active maintenance. Bugs might crop up occasionally, but everything looks fine as of now.