From GameWatcher: “Sea of Thieves has just revealed the launch time of its next update. May 27th will see server downtime from 10am BST so that the “Lost Treasures update can be safely unearthed,” and asks players to “Please plan your Voyages accordingly!”
The Lost Treasures Update is set to mainly bring quality of life changes to the game but the developers are keen to point out that player engagement is also a top priority with events scheduled between updates.”
Source: N4G PC Sea of Thieves: The Lost Treasures Update – Patch Notes Coming Soon