Blizzard recently announced that the Closed Beta for Diablo 3: Reaper of Souls has begun. They are going to send some “extremely limited” invites to nephalem heroes worldwide in the next few days.
As long as you have an active Diablo 3 license attached to your Battle.net account you will be able to opt-in for the Closed Beta Test from your Beta Profile Settings Page.
If you had access to the Friends and Family Beta, you will be granted automatically access to the Closed Beta phase. Reaper of Souls Closed Beta and Patch 2.0.1 PTR will run on the same client so players will be able to interact and play with each other (if you don’t have a CBT license you will only be able to access the content available in patch 2.0.1).
The good part is that there won’t be any NDA so expect a lot of screenshots, videos and streams in the upcoming days. To learn more about Diablo 3: Reaper of Souls Closed Beta check the official site.