As the year 2026 unfolds, the gaming community's anticipation for Zenless Zone Zero continues to build. With the beta release for Version 2.8 now accessible, trusted leaks have provided players with a fascinating, albeit unofficial, preview of the upcoming content. This new patch promises to bridge the narrative gap following Season 2's conclusion, setting the stage for the highly anticipated third season. While all information is subject to change upon the official release, the leaked details paint an exciting picture of new characters, their mechanics, and the evolving story of New Eridu.

The narrative in Version 2.8 will serve as an epilogue, delving deeper into the conspiracies brewing within the city. A key focus will be the introduction of Promeia, a new member of the enigmatic faction KRAMPUS. Furthermore, a fan-favorite character is set to make a dramatic return in a new form: Starlight Billy. This story update aims to deepen the lore and prepare agents for the seismic shifts expected in Season 3.

Accompanying this narrative expansion are two brand-new S-Rank Agents, each bringing unique combat styles to the roster.

❄️ Promeia: The Frostweaver

Promeia is an upcoming S-Rank Ice Anomaly Specialty Agent. Her kit is designed around manipulating elemental afflictions, specializing in applying the Ice Anomaly effect while capitalizing on other anomaly states present on enemies.

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Her gameplay revolves around a dual-stack system:

  • Frostbite Stacks: Promeia gains these by attacking enemies or when she or her allies trigger any Attribute Anomaly effect (Burn, Shock, etc.).

  • Frost Sentence Stacks: Upon accumulating 50 Frostbite stacks, she converts them into 1 Frost Sentence stack, with a maximum of 2.

Her core mechanic, Abloom, activates when damaging enemies already suffering from other elemental anomalies. By spending 1 Frost Sentence stack, she triggers this effect, dealing massive damage and recovering Decibels for herself. Her combat flow is fluid, often following up abilities with powerful EX Special Attacks that vary based on the preceding move. This makes her a complex but potentially devastating controller on the battlefield.

⚙️ Starlight Billy: The Phantom Rider

Starlight Billy returns as an S-Rank Physical Rupture Specialty Agent. His power scales with his Max HP, and his kit introduces a dynamic mode-switching mechanic.

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Billy operates in two distinct forms:

  1. Free Mode: In this base form, he deals powerful Physical Sheer Damage and can recover his own HP. Using his EX Special Attack here transitions him to his enhanced state.

  2. Bike Mode: Billy sacrifices his HP over time to enter this mode, which significantly boosts his overall damage output and reduces incoming damage. Every attack in Bike Mode generates Heat. Once enough Heat is accumulated, he can unleash an Enhanced EX Special Attack for catastrophic damage. This high-risk, high-reward style demands careful HP management.

🔫 Signature W-Engines

New agents bring new gear. Their signature W-Engines are tailored to maximize their potential.

Agent W-Engine Sub Stat W-Engine Effect
Promeia 30% Anomaly Mastery Increases Ice DMG by 35%. When EX Special Attack deals Ice DMG, Attribute Anomaly DMG increases by 15% for 30s (max 2 stacks).
Starlight Billy 30% HP CRIT Rate increases by 20%. Basic Attacks increase Physical Sheer DMG by 12% (max 2 stacks), lasting 12s.

Based on the leaks, the Version 2.8 banner schedule is expected to unfold in two phases with accompanying reruns.

Phase 1:

  • Feature: S-Rank Agent Promeia and her signature W-Engine.

  • Potential Reruns: As an Anomaly specialist, Promeia's banner may be paired with reruns of other top-tier Anomaly agents like Miyabi, Vivian, or Yanagi. Given her KRAMPUS affiliation, reruns for members such as Dialyn, Zhao, or Banyue are also plausible.

Phase 2:

  • Feature: S-Rank Agent Starlight Billy and his signature W-Engine.

  • Potential Reruns: To support his Rupture and HP-scaling damage, rerun candidates likely include characters that boost these aspects. Dialyn (for Rupture support) and Lucia (for damage amplification) are considered highly likely contenders.

💎 Final Thoughts

Version 2.8 of Zenless Zone Zero appears poised to deliver significant content, blending narrative progression with compelling new gameplay mechanics through Promeia and Starlight Billy. Their intricate designs suggest continued evolution in the game's combat depth. As always with pre-release information, specifics may shift, but the core vision for this epilogue update is clear: to enthrall players with new challenges and characters as the story of New Eridu marches toward its next major arc. For those eager to secure these new agents, planning resources ahead of the official release is a wise strategy.