Landmarkers

I'm wondering how pricing for extra perks will be determined for any last-minute cruises booked after December 14 for sailings beginning before February 20/23. Should I assume that the current Plus package will still be available at the current price because the new $60 per day package will not yet be available on those sailings? Or is it likely that there will no longer be a Plus package pricing option and extras (beverages, internet, crew appreciation) will be only be available through individual purchase/pricing? Can anyone help clarify how this might work? Thanks.