The Worlds Adrift team has informed testers that the closed beta test is being shifted into the future a few extra weeks. This allows time to provide more opportunities for the current crop of alpha testers to explore the most recent updates. Several fixes and additions have been made during the current test including resource respawn, resolution of connection issues, player respawn alterations and weather effects changes.
The team had this to say:
We want to give you the best possible closed beta experience and as a result of the invaluable feedback we've had, closed beta will start slightly later than planned.
Check out the Worlds Adrift page to learn more about the game.
Source: Email update