Aside from additional characters, it seems that Square Enix will be updating Dissidia Final Fantasy NT with new stages as well. The company has announced that the game is getting a new stage, the Orbonne Monastery, in an update this March.
The Orbonne Monastery hails from 1997’s highly-acclaimed turn based strategy spin-off Final Fantasy Tactics. Specifically, it’s where the game’s introductory battle takes place. The Dissidia Final Fantasy NT version faithfully recreates that stage, as the trailer below demonstrates.
As for the arcade version: that’ll be getting the Orbonne Monastery earlier, as part of its February 22nd update.
Source: Square Enix