Square Enix revealed Trials of Mana during the E3 2019 Nintendo Direct. Trials of Mana is a full 3D remake of Seiken Densetsu 3, which originally released only in Japan on Snes in 1995.

The game is titled Seiken Densetsu 3 Trials of Mana in Japan, keeping its original name. Trials of Mana will be launching worldwide on PS4, PC via Steam and Nintendo Switch, in early 2020.

I'm extremely excited about this, as in my opinion Seiken Densetsu 3 is one of the best games ever, and much much better than its predecessor Secret of Mana. I can't wait. Simultaneously, I can't help but be worried about it seeing how the Secret of Mana 3D remake turned out. However, instead of keeping the original game's systems, and even some of its annoying bugs, this Seiken Densetsu 3 remake has completely new game mechanics,  and doesn't even keep the traditional top-down view, so I'm sure Square Enix got this.

Square Enix is definitely having its best E3 in years. You can catch the trailer for Trials of Mana remake below. I've included both the English and the Japanese version, though only the narration is dubbed in English in the former.