Releases in early 2025. Check out the Anime Trending article for additional information. Visual was posted to the official twitter account.

From the article:

The manga will provide a “parallel” experience where Suletta Mercury and Miorine Rembran meet as high school students in a near-future Japan.

Mobile Suit Gundam: The Witch from Mercury: Seishun Frontier is planned to begin serialization on Kadokawa’s Comic Newtype in early 2025. The scenario is written by HISADAKE (Mobile Suit Gundam: The Witch from Mercury setting cooperation), while the art and costume designs are provided by Hiro Hata (Dogs and the Brave Are Not Showy).