Square Enix announced that Seiken Densetsu: Final Fantasy Adventure is collaborating with the mobile title Rise of Mana, and made a sneaky announcement at the end of the latest video.

The collaboration will feature characters from Final Fantasy Adventure into Rise of Mana. Final Fantasy Adventure is also titled Mystic Quest in Europe, and it was actually the first Mana game in the series, which is called the Seiken Densetsu series in Japan.

At the end of the collaboration trailer, there’s a message with a Final Fantasy Adventure logo and a message that reads “production confirmed”. We still don’t know what kind of game it will be, but we’ll likely hear more about it in the near future.