The next Fourth Wing book does not have an official release date yet. Based on recent reporting, the most realistic estimate is late 2027 or later.

What’s confirmed

  • Rebecca Yarros has already started working on book 4, but there is still no published date.
  • The next Empyrean release coming sooner is not book 4; it’s a separate book, Peculiar Stars , due November 17, 2026.

What fans are expecting

  • Some coverage and fan speculation point to 2027 as the likely window for Fourth Wing book 4.
  • A later 2027 release is also consistent with the author taking time between major installments.

TL;DR

If you mean the next book in the Fourth Wing series , there’s no official date yet , but late 2027 is the best current estimate.