Blizzard has released an official blog post for Diablo 4 Season 2: Season of Blood!
Season of Blood Blog Post
A fanged threat emerges from the shadows in our second Season, Wanderer. At Gamescom: Opening Night Live, the Diablo IV development team announced Season of Blood will begin on October 17.
At the behest of their dark master, a newly turned army of ravenous vampires has set their sights on Sanctuary.