Figureheads Japanese Open Beta Test just launched few days but developers already have plans for International server.
Figureheads Possible International Serve
After checking game client files (Thanks to Steparu) I found these files in localization folder -
SquareEnix\Figureheads\Engine\Localization
Figureheads International Server
SquareEnix\Figureheads\FusionGame\Localization have both INT (International) and JPN (Japan) Folders.

In SquareEnix\Figureheads\Binaries\Win32\locales you can find 53 files -
Figureheads International Server
Figureheads is a bit slow-paced Mecha MMOTPS but still good game. Right now Japan server have many events and even collaboration event with Xenogears! You can get Mecha and Characters from Xenogears.