As reported by Gematsu, Bandai Namco has sent out a press release (in Japan) announcing the existence of a new Dragon Ball 2.5D fighting game, Dragon Ball Fighters.
Arc System Works has Dragon Ball experience, too, having put out a bunch of Dragon Ball Z games over the years.
Dragon Ball Fighters is planned to release early 2018 on PS4, PC and Xbox One.
The game is being developed by Arc System Works, known for Guilty Gear and BlazBlue, both fighting series.