After last week’s announcement, Blizzard has started to send out the first wave of invites for their upcoming Closed Beta test. Players who are interested in joining the test phase should update their account settings until October 11. In their recent blog post, Blizzard also stated that Closed Beta invites will go out until November 18.
Closed Beta Invite mail by Blizzard (via resetera)
Diablo IV Developer Update: