The series’ producer says other Square Enix titles could get the Theatrhythm treatment.
The upcoming Theatrhythm Final Fantasy: Curtain Call may end the series’ reliance on Final Fantasy and allow for future rhythm titles based on other Square Enix franchises.
Theatrythym producer Ichiro Hazama revealed this and more in an interview with GameSpot. "This is just my own broad thinking, but we're probably going to draw the line on Final Fantasy,” he said. “This will be the last Theatrhythm featuring Final Fantasy. I'm thinking about other titles with music that we produce, we can do something with that."
Hazama noted that “nothing concrete [is] on the table yet.” However, there are many Square Enix properties boasting well-loved soundtracks that could merit a Theatrhythm-type experience, from Chrono Trigger to Dragon Quest to Kingdom Hearts and beyond.