Some itineraries are available for preview and hopefully they're in the process of loading more as I type.  Riviera only has bookings through September 18 2025 from Seattle (ending in Tokyo October 8 2025).  I'm actually interested in Asia/SWP cruises on O or A class, and it appears Riviera is it.  FWIW, Marina and Vista are in the Med through November and December 2025 respectively.