During its stream, Blizzard announced that the first beta invites will be in the mail soon, and more will come during summer, at least to those that have joined the beta program.
According to details provided in the stream, the beta will have all the features, including sanctums, covenants, soul binds, and more, but the level cap will be set at 60.
The beta phase will include Castle Nathria raid, rune crafting, covenant campaigns, PvP testing, and more.
The same stream also showed some of those details, including those covenant sanctums, as well as the new Theater of War dungeon.
You can check out more in the World of Warcraft: Shadowlands developer update stream below.