The closed beta for StarCraft 2: Legacy of the Void is set to kick off on March 31.
Invites will be sent to a small number of players with more participation offers emailed as the test progresses and expands.
At the start of the beta, some units features and other content will be missing, but the tester will run "for a longer period than usual."
Archon Mode will be playable and changes to the Terran race will be tested.
The full log of changes coming with the beta can be found over on Battle.net.