Diablo 4 BlizzCon 2026 Predictions: Baal Expansion, New Endgame, Diablo 5 and More

Summary:

Diablo 4 could be heading toward one of its biggest announcements yet at BlizzCon. From a potential Baal expansion and major endgame changes to Diablo 2 updates, a Diablo 1 remaster, and even long-term Diablo 5 speculation, here are the most realistic predictions for Diablo 4 Items based on current clues and rumors.

Diablo 4 Could Reveal a Major New Expansion

The biggest prediction for BlizzCon is a new Diablo 4 expansion. While rumors have fueled speculation about Diablo 5, a major expansion for Diablo 4 appears far more realistic given the game's current stage and Blizzard's ongoing plans for the franchise.

The strongest theory is that the next expansion could focus on Baal, Diablo 4 Items, the Lord of Destruction. Blizzard has already used language connected to the Lord of Destruction in its promotional material, while Diablo 4's story has repeatedly hinted that the conflict with the Lords of Hell is far from finished.

Baal would be an especially exciting choice because of his importance to Diablo 2. Bringing him into Diablo 4 would allow Blizzard to connect the modern game with one of the franchise's most iconic villains while creating another major chapter in the ongoing storyline.

Is Baal the Next Major Villain?

Baal's potential return makes sense from both a story and marketing perspective. Diablo 4 previously introduced players to Lilith and Mephisto-related threats, while the broader narrative continues to build toward an even larger confrontation.

One possibility is that Blizzard could introduce Baal as the primary antagonist of the next expansion and save Diablo himself for a later storyline. This would create a natural progression rather than bringing every major villain back at once.

A title connected to Destruction would also fit Blizzard's naming style. Diablo 4 already has Vessel of Hatred, so an expansion themed around destruction would immediately connect with long-time fans of the series.

Don't Expect Diablo 5 at BlizzCon

Despite the huge amount of Diablo 5 speculation online, a Diablo 5 announcement does not appear to be the most likely outcome.

Diablo 4 launched in 2023, while its original announcement happened in 2019. That means Blizzard spent roughly four years developing the game after its public reveal. If a similar development cycle applies to Diablo 5, a much later announcement would make more sense.

A release window around 2030 or beyond is therefore much more believable than an immediate Diablo 5 reveal. Blizzard still has plenty of opportunities to expand Diablo 4 before moving the entire franchise to a new numbered entry.

For now, fans should probably expect Diablo 4's next expansion rather than Diablo 5.

A New Diablo 4 Class May Not Be the Priority

Another major rumor concerns a possible new class. Although a new class would certainly generate excitement, it may not be what Diablo 4 needs most right now.

The game already has a substantial class roster, and adding another option would not automatically solve some of its biggest long-term issues. Improvements to inventory management, account-wide progression, class balance, build diversity, and endgame content could have a much bigger impact.

Instead of simply adding another class, Blizzard could significantly rework existing classes. More meaningful skill updates, new mechanics, and stronger build options could make the current roster feel fresh without creating another class that needs to be balanced from scratch.

That said, a new class remains possible, especially if Blizzard wants a major headline feature for the next expansion.

New Endgame Systems Could Be the Real Game Changer

One of the most important improvements for Diablo 4 could be new endgame content.

Players need reasons to continue progressing after reaching the late-game stage, and Blizzard has repeatedly experimented with different endgame systems. A future expansion could introduce a completely new activity designed around long-term progression, challenging encounters, or high-level farming.

A stronger endgame would also give existing classes more value. Instead of simply chasing higher damage numbers, players could have meaningful goals that encourage different builds and playstyles.

For many Diablo 4 players, this could ultimately be more important than another class.

Could Diablo 4 Get a Witcher Crossover?

Another interesting possibility is a collaboration between Diablo 4 and The Witcher. Blizzard and CD Projekt have been linked to a crossover that could bring new cosmetic content to the game.

A crossover would likely focus on cosmetics and transmogs rather than gameplay-changing content. However, the potential visual quality makes this particularly exciting.

Imagine a Barbarian or another Diablo 4 class equipped with armor inspired by Geralt and the Witcher universe. If Blizzard delivers high-quality cosmetics, the collaboration could become one of the game's most popular crossover events.

Diablo 2 Resurrected Could Also Get a Big Update

Diablo 4 may not be the only Diablo game receiving attention at BlizzCon. Diablo 2 Resurrected has also been surrounded by interesting rumors.

One of the biggest possibilities is additional content, including a potential Act 6. Diablo 2's fourth act is famously short, so expanding the original adventure with another major chapter would be a significant update.

Rumors also suggest potential changes to iconic mechanics such as Enigma, Druid teleportation, Blessed Hammer, and Vengeance. Even if only some of these changes become reality, a substantial Diablo 2 Resurrected update would give veteran players another reason to return.

A new act would be particularly exciting because Diablo 2's itemization remains one of the strongest systems in the franchise. Many players still consider its loot system superior to Diablo 4's in several ways.

A Diablo 1 Remaster Is Another Possibility

There is also speculation about a Diablo 1 remaster. While this remains much less certain, it would be an interesting way for Blizzard to celebrate the franchise's history.

A modernized version of the original Diablo could introduce the classic game to newer players while giving longtime fans an opportunity to revisit its dark atmosphere with improved visuals and quality-of-life features.

Whether this happens at BlizzCon or later remains unclear, but the idea fits perfectly with Blizzard's recent interest in revisiting classic franchises.

Could Blizzard Announce a Diablo TV Series?

A Diablo television series has also been rumored for some time. Given the success of game-based adaptations across the industry, a Diablo series could make considerable sense.

Netflix would be an obvious potential partner, although nothing should be treated as confirmed without an official announcement. Diablo's dark fantasy setting, memorable characters, and extensive mythology provide plenty of material for a long-form animated or live-action project.

If Blizzard has already made meaningful progress behind the scenes, BlizzCon could provide the perfect stage for a first announcement.

Diablo 4 Season 15 Will Still Be Important

Even if the biggest rumors fail to materialize, Diablo 4 Season 15 should remain one of the central topics.

With the new season arriving shortly after BlizzCon, Blizzard has an ideal opportunity to discuss its seasonal content, balance changes, and future direction. A developer campfire-style presentation could provide more detailed information about the season while the main opening ceremony focuses on larger franchise announcements.

Ultimately, the safest prediction is that Diablo 4 will receive substantial attention at BlizzCon. A Baal-focused expansion announcement, new story content, improved endgame systems, cheap Diablo 4 Items, and major class changes are all more realistic than a Diablo 5 reveal.

For fans, that may actually be the better outcome. Diablo 4 still has plenty of room to evolve, and a major expansion could address its weaknesses while expanding its story. If Blizzard can combine a legendary villain like Baal with stronger endgame systems and meaningful improvements, the next chapter of Diablo 4 could become one of the most important moments in the franchise's modern history.