During the Dragon Ball Games announcement stream today Dragon Ball FighterZ producer Tomoko Hiroki basically confirmed the game will continue to be supported and more content is set to arrive. This content is said to include another big patch similar to the last big one with system changes and most likely more character buffs and nerfs.
While not stated outright Hiroki said we’ll have to wait for the Dragon Ball FighterZ World Tour Finals on 01/26/19 for more info.
In addition to this, Bandai Namco also announced that a new digital card game called Super Dragon Ball Heroes World Mission. Slated for release on May 5th, 2019., the game will be released for the Switch and PC. A new villain is also being primed for their reveal in the game. Included is 1,160 characters, 350 characters and according to Bandai Namco, will be the biggest Dragon Ball game ever created. As for game modes, it was mentioned that a story mode is being developed, as well as a multiplayer mode.
Think of it like Yugioh or Pokémon TCG Online. It looks pretty cool, and expect more coverage of the game in the upcoming months.