BlizzCon 2026 is almost here, and Diablo fans have plenty to discuss before the event begins. Blizzard is preparing to celebrate 30 years of the Diablo franchise, while players are also getting ready for the next chapter of Diablo 4. As the community prepares characters and D4 items for the upcoming season, rumors about Baal, a possible Lord of Destruction expansion, and even a mysterious new class have created considerable excitement. However, not every leak circulating online should be treated as reliable information.
The most interesting rumor currently involves a possible expansion called “Reign of Destruction.” Images circulating online appear to show Baal, the Lord of Destruction, alongside Diablo. Since Baal is one of the most important villains in Diablo II, his potential return would be a major connection between the classic games and the modern Diablo 4 storyline. Blizzard has also released official promotional material containing imagery that has encouraged fans to speculate about the character's possible role in future content.
At the same time, another set of images has attracted attention because they allegedly reveal a new Demon Hunter or Witch Hunter-style class. The character appears to use a gun and a hand crossbow, which would represent a significant departure from the traditional weapon styles seen throughout the franchise. However, the authenticity of these images is highly questionable. Some community members believe they may have been created with AI, while others have pointed out that the visual design does not necessarily fit Diablo's established dark fantasy style.
There have been older data-mining discoveries involving hand crossbows, which has added another layer to the discussion. Other discoveries have reportedly included references to possible movement features and changes related to the mysterious Cow Level. These findings are worth watching, but data mining should not be confused with an official announcement. Developers frequently test different ideas during production, and some experimental features never make it into the final game.
The Baal speculation has received more attention because Blizzard itself has been emphasizing the franchise's history ahead of the anniversary celebration. Official social media posts and promotional images have given fans more material to analyze. Some lore references have also encouraged theories about the Lords of Hell and the order in which major villains could become involved in future stories. None of these clues confirms a new expansion, but they have certainly made Baal one of the most discussed subjects ahead of BlizzCon.
The event itself is expected to provide much more information. The main stage begins at 10 a.m. PT, followed by several presentations involving Blizzard's different franchises. A major Diablo developer presentation is particularly interesting because it covers the wider Diablo team rather than focusing exclusively on Diablo 4. This means fans could potentially hear information about Diablo II, Diablo III, Diablo Immortal, or other projects alongside Diablo 4 news.
The 30th anniversary celebration is another major part of the event. Blizzard has released an anniversary trailer featuring references to the history of the franchise, including material that longtime Diablo II fans will recognize. Celebrating three decades of Diablo provides an excellent opportunity for Blizzard to revisit classic characters and locations while also introducing new content for the current generation of players.
Diablo 4 will also have a dedicated presentation during the event. Since a new season is scheduled to begin shortly afterward, players are expecting information about upcoming seasonal features, balance changes, and patch notes. A developer presentation could clarify which features are arriving immediately and which ideas may be planned for the longer term. For active players, these details could be more important than any unverified leak because they will directly affect the next stage of the game.
Another presentation that should attract attention is “Art of Darkness,” which focuses on the creation of Diablo 4's cinematics. The franchise has always been recognized for its atmospheric storytelling and dramatic cinematic sequences. A behind-the-scenes look at the production process could provide fans with a better understanding of how Blizzard creates the visual identity of Sanctuary. Although some fans are already speculating about a Diablo movie or television series, such possibilities should remain separate from the confirmed event information.
BlizzCon will also feature Diablo community streams and Twitch Drops. Players who connect their accounts and watch eligible creators may receive special rewards, including cosmetic items. These promotions provide another reason to follow the event live, especially for fans who want to experience the announcements alongside other members of the community.
Ultimately, the biggest questions are whether Baal will appear, whether “Reign of Destruction” is a real project, and whether Diablo 4 is preparing to introduce a completely new class. For now, the available evidence consists of official promotional material, older data-mining discoveries, community speculation, and potentially unreliable leaks. Players should therefore wait for Blizzard's official announcements before treating any rumored feature as confirmed. Whatever is revealed, the new season and future content will give players plenty to explore, and having enough Diablo 4 materials ready can help make gearing, upgrades, and build experimentation smoother when the next chapter begins.

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