Diablo IV is heading into one of its busiest periods yet, with a new season, a brand-new class, a novel release, and a major expansion all arriving within the next few months.
Blizzard has been steadily revealing pieces of the roadmap through developer livestreams, seasonal previews, and new lore announcements.
Here’s how the Diablo calendar is shaping up for 2026.
Season 12 Arrives Before the Expansion
The next seasonal cycle for Diablo IV is Season 12, expected to arrive before the upcoming expansion launches.
Early previews suggest the season may include:
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Killstreak-style gameplay mechanics
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Bloodied item systems
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skill tree refinements
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balance adjustments from PTR feedback
Season 12 will likely function as a bridge between the current meta and the new systems arriving with the expansion.
The Warlock Class Debuts
One of the most anticipated additions coming to Diablo IV is the Warlock class.
The Warlock draws inspiration from the ancient Vizjerei bloodline and focuses on dark magic, curses, and demonic power.
According to Blizzard’s previews, the class will feature:
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occult-themed abilities
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demonic summons
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curse mechanics
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unique mastery systems
The Warlock will launch alongside the next Diablo IV expansion.
The Lord of Hatred Expansion
The next major Diablo IV expansion, Lord of Hatred, launches April 28, 2026.
The expansion continues the storyline surrounding Mephisto, one of the Prime Evils, whose influence continues to spread across Sanctuary.
Key features expected in the expansion include:
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the Warlock class
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the Skovos Isles region
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new story campaign content
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additional dungeons and endgame systems
Blizzard has described the expansion as a major step forward for Diablo IV’s live-service roadmap.
New Diablo Lore: The Lost Horadrim
Blizzard is also expanding the Diablo universe through a new novel.
The Lost Horadrim releases April 21, 2026, just one week before the expansion launches.
The story follows Lorath Nahr and Amazon captain Adreona as they search for a lost Horadrim vault hidden somewhere in the dangerous Skovos Isles.
The book will serve as a lore bridge leading directly into the events of the Lord of Hatred expansion.
Diablo II Resurrected Continues Seasonal Support
While Diablo IV moves toward its expansion, Diablo II Resurrected continues to receive seasonal ladder updates.
The current Reign of the Warlock ladder season recently received a promotional push through a surprising collaboration with musician bbno$, featuring a music video tied to the season.
The crossover shows Blizzard continuing to support the Diablo franchise across multiple titles.
A Busy Year for Diablo
Between new classes, seasonal mechanics, story expansions, and ongoing community events, Diablo’s roadmap for 2026 looks packed.
For longtime fans of Sanctuary, the coming months will likely define the next era of the franchise.
With the Warlock class and the Lord of Hatred expansion on the horizon, Diablo IV is preparing for its biggest content push since launch.
