This is the information i read on another site.
2025-2026 Asia season will go on sale Mar 28 to the general public (Mar 27 for Elite Captain’s Circle® Members, an exclusive early booking window). In addition, princess will have also added 11 more voyages, ranging 9 to 22 days, roundtrip Tokyo, to the 2025 Japan season.
My PVP in Australia confirmed that they were coming too. But I haven't received any email or anything about the itineraries and its like 8 days away (because its the 19 March 2024 here).
I'm hoping Coral has all the information.