Honora’s Hoyoverse confirmed a collaboration between Honkai: Star Rail and Zenless Zone Zero, scheduled to launch in Winter 2026.
The partnership will appear alongside the upcoming Honkai: Star Rail 4.7 update, according to insider leaks. It also reveals a cameo from the Astral Express conductor, Pom‑Pom, who will roam the video store, the 404 Livehouse, and the Gadget Store in Zenless Zone Zero. The character will be referenced as an unidentified Bangboo named Pom‑Pomboo.
Official statements outline only the existence of the collaboration, but leaks point to three decisive character exchanges. Zenless Zone Zero roles will include Astra Yao and Ellen, who are slated to join the Honkai: Star Rail roster, while Robin is expected to migrate to Zenless Zone Zero.
Historically, Hoyoverse has used character swaps to tie together its titles. The earlier Honkai: Star Rail ‑ Honkai Impact 3rd link added Sparkle to the latter’s lineup. In this new partnership, the rumors hint at a concert‑style event tying the swapped characters together.
Which crossover swap will you find most intriguing? The discussion is opening in every fan forum as the Winter 2026 window approaches.
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