Given how long it's been since they announced Season 3 my guess was this was planned for a while. Bad Batch was similar, it recorded it's series finale before Season 2 even released.
Question is what this means for the other 2024 animated releases. Spidey was reported for late October/early November, eyes of Wakanda is shorter like Tales of the Jedi/Empire so that may just be all at once. Maybe What If around July?