People don't really talk about the SaGa series much, do they? What started as Makai Toshi Sa-Ga (The Final Fantasy Legend in North America) in 1989 spawned quite a few follow-ups, and the next is headed to the popular GREE mobile social gaming platform.
According to a booklet included in this week's Weekly Famitsu, this entry in the series is called Emperors SaGa. Pre-registration has started for the game, and more details should be on the way soon. Here's the blurb as it appears in the magazine.