Niantic, the developer behind Pokemon Go, is reportedly working on a Harry Potter game called "Harry Potter: Wizards Unite." The mobile game is significantly "influenced" by Ingress, an augmented reality experience somewhat like Pokemon Go that Niantic launched in 2012.
This project is coming from Niantic and Warner Bros Interactive, along with Warner Bros' new Portkey Studios. "Portkey" is a reference to a special object in the Harry Potter universe.
It's going to be released on mobile devices sometime next year. Warner Bros and Niantic have yet to publicly discuss the game, but TechCrunch says its existence is "official."