Let’s all guess which series this is

AGE OF OVERLORD

-The second core booster of 2023
-Release Date: July 22 2023
-Will have cards for old and new themes
-Will have Quarter Century Secret Rares
-First run will have the “+1 Bonus Pack” as usual

Source: https://yu-gi-oh.jp/news_detail.php?page=details&&id=1558