A mysterious teaser site from Square Enix has appeared bearing the Theatrhythm Final Fantasy name.

The site promises a reveal “soon” along with an animated graphic of the familiar Theatrhythm note slide and chimes. Speculation would lead us to believe in a possible mobile (iOS/Android) port given the more recent trends within the company. Such speculation is further fueled by the lack of a CERO rating – something which typically signifies a mobile or social game showing.

Theatrhythm Final Fantasy released on the 3DS earlier this year, and was met with high praise from fans of both Final Fantasy and rhythm games alike. The teaser for this new development can be accessed through here.