Shattered Grove

This zone seems to be a renamed copy of Invasion Point: Aurinor, complete with the map listing it as a subzone of Argus.

Shattered Grove is another World the Brokers send you to while on the quest Working for the Living in Maldraxxus. On your Map, it shows you are in Argus, but this could be where Blizzard put the zone as the quest text leads to believe it could be anywhere. "I scour the known cosmos in search of opponents, that allow the Maldraxxi, to gain first hand combat experience."

If you are a Hunter and are here, do not forget to tame yourself one or two Anima-Gorged Feaster flying around. The Rays keep their Glow and Transparent look.

There were bizarrely dozens of players in the zone when I entered, from several different realms. I guess they're using the same cross realm tech for it that was used in the original Invasion Point or something.