Update: Famitsu confirms Atelier Sophie is the next Atelier title. "Alchemy" and "book" are the themes for the game. Atelier Sophie is in development for PlayStation 4, PlayStation 3, and PlayStation Vita.
The next game in the Atelier series appears to be Atelier Sophie. In addition to the trademark filed by Koei Tecmo Games, early Japanese magazine reports state Atelier Sophie is on the cover of this week’s Dengeki PlayStation. It appears Atelier Sophie has two artists working on the game.
More details about Atelier Sophie will be revealed soon. A Nintendo 3DS remake of Atelier Rorona recently came out in Japan.