Paizo just announced starfinder 2e and made the bold claim that it will be 100% compatible with current and future Pathfinder 2e content.

The playtest is going to drop in 2024, likely to coincide with either paizocon (June/July) or Gen con (usually August) the playtest is going to feature 6 classes.

Along with the 2 playtest classes announced for pathfinder 2e, there's going to be 8 new classes to theory craft within the next year, which is absolutely insane.