At BlizzCon 2026, Blizzard revealed update plans for Hearthstone spanning from its next expansion to Battlegrounds, the Journal, and a new class. The first content players will experience is 'Reign of the Black Empire,' releasing on October 20 (PT). Set tens of thousands of years ago in Azeroth when the Old Gods collided with the Titans, each Old God is designed to possess four abilities and use two of them in a single turn. The new keyword 'Assemble,' which merges elements of two cards, utilizes a card pool of over 250 cards.
Battlegrounds will welcome a new minion type, 'Aberrations,' where sleeping Old Gods awaken as more Aberration minions die. The Journal is also getting a complete overhaul so players can track various events, rewards, and stories in one place. New event types such as the mysterious Black Market and boss battles are being prepared, with plans to introduce new content, Tavern Brawls, and event variations over the next 9 months to keep players logging in every week.
One particularly eye-catching piece of content in this announcement is the 2v2 Tavern Brawl. Having confirmed potential from player reception to Battlegrounds Duos, the development team expanded co-op play into card battles. However, it is not yet confirmed as an official permanent mode. They will first test it in a limited-time Tavern Brawl before deciding on its development and expansion direction based on player feedback. The new class, Monk, will arrive in March 2027, chosen due to high preference shown on-site at BlizzCon 2023 and in subsequent surveys.
Inven met with Nathan Lyons-Smith, Executive Producer of the Hearthstone team, and Brendan Sewell, Senior Game Design Manager, to hear more details about the announcements. The two developers explained the design direction of the Old Gods and Assemble, the reasoning behind testing 2v2 in Tavern Brawls first, the background of choosing the Monk, and their long-term live service vision. While there are currently no plans for a physical TCG, they have not completely closed the door on the possibility, noting that if the right idea emerges, it could start as a small demo experience at events like BlizzCon.
Please briefly introduce the new Hearthstone content revealed at BlizzCon 2026.
" Nathan Lyons-Smith, Hearthstone Executive Producer: The next expansion is 'Reign of the Black Empire,' releasing on October 20. It covers the war between the Old Gods and Titans tens of thousands of years ago. We've shown Old Gods and Titans before, but we've never traveled this far back in Azeroth's history. You will see familiar faces and powerful Old Gods once again.
Brendan Sewell, Senior Game Design Manager: In Battlegrounds, a new minion type called Aberrations will be added. Every time Aberration minions die, they awaken a sleeping Old God, and the awakened Old God will have a major impact on the battlefield.
Nathan Lyons-Smith: We are also completely revamping the Journal so players can view various events, rewards, and stories in one place. We're preparing new event types and 2v2 Tavern Brawls as well. In 2027, we plan to introduce the new Monk class.
What is the reason behind introducing 2v2 Tavern Brawls beyond the traditional 1v1-focused rules?
" Brendan Sewell: Tavern Brawls have served as a testing ground for experimenting with new game mechanics that players show interest in. Taking advantage of their temporary nature, we wanted to push the boundaries of Hearthstone and provide experiences that players would enjoy. Many members of our design team also love co-op modes in other card games, so we decided to bring that into Hearthstone.
Nathan Lyons-Smith: We were inspired by player reception to Battlegrounds Duos. We researched and prototyped ways to apply this to standard card combat rules, and it was fun. We plan to showcase it in Tavern Brawls first, observe player feedback, and then decide how to evolve and expand 2v2 based on what players want.
Do the Old Gods and Titans appearing in 'Reign of the Black Empire' carry over past mechanics, or are they implemented in new ways?
" Brendan Sewell: These Old Gods have new personalities and playstyles. They remain big, powerful cards as before, but while an Old God is on the board, players can use two abilities in a single turn. We designed them to highlight each Old God's lore and identity—such as synergizing with Deathrattle or dealing continuous damage to the board. Beyond game mechanics, we focused on making sure the four Old Gods feel distinctly different from one another.
How do you plan to implement the unique traits of the new Monk class?
" Nathan Lyons-Smith: We appreciate the anticipation for the Monk. However, it is not yet the stage where we can share details on which expansion or in what manner the Monk will debut. Right now, we are focusing on 'Reign of the Black Empire,' the Battlegrounds update, and the new Journal. Once we're ready, we will share a detailed look at the Monk's unique gameplay.
How do you plan to evolve Hearthstone in the long term?
" Nathan Lyons-Smith: I've been playing Hearthstone since the beta test 13 years ago. The Monk will be the third new class added to Hearthstone, and over the years, we've introduced many modes and cards. Countless players, including myself, love this game. We are envisioning the next 5 to 10 years, thinking about what it means to be a Hearthstone player. While there are no specific details to reveal right now, we want to balance immediate content with long-term R&D to keep players entertained for a long time to come.
Brendan Sewell: We are preparing the overhauled Journal, new event types, the mysterious Black Market, boss battles, and 2v2 Tavern Brawls. We pondered how to keep players engaged between card set releases. Over the next 9 months, we plan to shake up existing systems and add new information and gameplay so that players can discover fresh, exciting elements every week.
Why did you choose the Monk among the various candidate classes?
" Nathan Lyons-Smith: At BlizzCon 2023, when players asked about the next new class, we asked them back what class they wanted. We brought up options like Monk and Dracthyr, and in a small survey back then, Monk received the most votes. Later, in broader player surveys, Monk also ranked high as a feature that would entice players to return to Hearthstone. Our goal is to listen to what players want to see and experience, creating gameplay that fits the Monk fantasy while remaining fun in Hearthstone.
Are there any plans to turn Hearthstone into a physical trading card game?
" Nathan Lyons-Smith: There are no plans yet. But that doesn't mean never. The dev team loves card games regardless of whether they're physical or digital, gathering about once a month to play new expansions or other card games. Proposals for a physical version come up continuously within the team.
What makes Hearthstone special is that it actively leverages its digital nature. Recreating that same charm with physical cards is difficult, so we would need to find the right approach. If a great idea comes along, we could start with a small trial experience at events like BlizzCon.
In the trailer, there was a scene combining the effects of two cards. What mechanic is the new keyword 'Assemble'?
" Brendan Sewell: 'Assemble' started from the idea of boldly expanding Discover. We wanted to realize the experience of taking two cards and combining them into one. After exploring various possibilities, we felt that assembling from a card pool of over 250 cards struck the right balance between broad choices and a stable gameplay experience.
Even within the dev team, we are still discovering new combinations that bring joy. Among the unrevealed 'Reign of the Black Empire' cards, there are cards that support the Assemble mechanic as well.
