Square Enix has confirmed that more SaGa games will be remastered in the future, including Romancing SaGa, SaGa Frontier 2, and Unlimited SaGa. A new game is in development for the series
Bringing Romancing SaGa -Minstrel Song- Remastered into the modern era | Square Enix Blog
Romancing SaGa: Minstrel Song Remastered announced for PS5, PS4, Switch, PC, iOS, and Android - Gematsu
Romancing Saga Original Soundtrack Revival Disc | SQUARE ENIX Store