@Gargron I, for one, am looking forward to this. It's one more nail in X's coffin. Some of my friends moved to Threads, so now I can follow them again.
Others moved to Bluesky. I can't follow them YET, but it seems they're also trialling federation, so I might be able to soon.
Pretty soon, anyone still on X and nowhere else is really going to start feeling the isolation.