Blizzard confirms 'Diablo IV' with a gothic, gruesome trailer

After leaks suggested as such, Blizzard officially announced Diablo IV at BlizzCon. It started the event's opening ceremony with an impressively gruesome cinematic trailer that gives a sense of the action RPG's vibe.
Source: Engadget | Blizzard confirms 'Diablo IV' with a gothic, gruesome trailer