Rare has said via Twitter that, they will start with Season in Sea of Thieves. This is somthing new and coming out on January 28, . If you have Xcloud, you can enjoy this. It will be the first major change in Rare’s plans for Sea Of Thieves, where new content from now on will be released through seasons. With this there will come a Plunder Pass, and in each new season there will be a new way to play Sea of Thieves.