Diablo 4's Vessel of Hatred expansion has now been out for over a month, furthering Neyrelle's story of destroying Mephisto and introducing the new Spiritborn class with all its bells and whistles. Now, all eyes are on Diablo 4's next expansion, as its first has left things very open-ended for the story of Neyrelle and Mephisto, and the fate of Nahantu and Sanctuary.