Protectors of Moonglow

We're actually looking to expand upon Nephalem Rifts in our upcoming 2.1.0 patch, creating what we're internally calling "Tiered Rifts." In a way, Tiered Rifts are similar to an endless dungeon (or "topless tower," as Wyatt likes to call it) in that as you complete different tiers of Rifts, you can unlock more tiers. Another goal with Tiered Rifts is to provide a way for players to test and challenge themselves, and also compare their progression against the progress of other players.