Larry "Major Nelson" Hryb posted about the bundle over on the Major Nelson blog, where it was revealed that there's an Xbox One S bundle that contains a copy of Sea of Thieves.
You'll be able to pick up the bundle from physical Microsoft Stores, or you can purchase it from e-tailers online.
You can also pre-order the bundle as well, which comes with a 1TB Xbox One S home console, a wireless Xbox One controller, a built-in 4K UHD Blu-ray player, which supports 4K media and streaming video content but not 4K games.
However, the bundle is sweetened with the inclusion of a free month of Xbox Live Gold that will also gain you access to the Xbox Live Games With Gold program, which gives away four free games each and every month.
If you activate it on March 20th you'll have access to two of the games for the Xbox One and Xbox 360 made available at the end of March, while also gaining access to four additional games throughout the start of April.