It's the ultimate version of Fullmetal Alchemist.

A source close to the matter has told me that one of the new games that Arc System Works is going to announce in their upcoming showcase (https://www.youtube.com/watch?v=eNo1kEEiMSg) two days from now is a Fullmetal Alchemist fighting game (1v1, no tag) for PS4, PS5, Switch 2, and PC. It will be ASW's first ever 3D fighting game that allows the characters to side step like in Tekken, Dead or Alive, Virtua Fighter etc.
The game is intended to be released as a full package from the get go and will not receive any update nor DLC post release. Full roster:

Edward
Alphonse
Hohenheim
Scar
Roy
Hughes
Alex
Olivia
Riza
Lin
May
Kimblee
Wrath
Pride
Greed
Lust
Envy
Glutony
Sloth
Father

Arc System Works asked Square-Enix (some people don't know this, but Square-Enix owns FMA) if they could add a guest character like Crono or Tifa, but Square rejected the idea.