The promise has been made.
The SaGa series was formerly developed by Square and is now owned by Square Enix. The game’s design was led by Akitoshi Kawazu, whose work was an essential contribution in the first Final Fantasy. Kawazu, nonetheless, still works across both series. These are two titles from a series the company has formerly taken risks with but has faltered with as of recent.
SaGa has had an interesting history when it was first ported into the west. At the time, Final Fantasy was blossoming and finding success worldwide. When the first SaGa game, Makai Toushi Sa·Ga, was translated for worldwide release, the game was renamed to The Final Fantasy Legend and linked to the eponymous series to improve marketing. Although the two franchises share a lot of similarities, SaGa has more of an open-world gameplay experience and is bound to a less linear narrative with its multifaceted narrative.
Both games are set to release across multiple platforms including mobile devices in Japan late 2019, while dates for western localization are still pending.