Dragon Ball FighterZ was announced at E3 for PC, Xbox One, and Playstation 4. However, the Nintendo Switch was not among them. GameBlog, a French site, asked Dragon Ball FighterZ producer Tomoko Hiroki about a Switch port. Hiroki says that technical specs and/or a lack of power were not the reason, even though Hiroki didn’t actually say what the reason was. The good news is that Hiroki says a Switch version isn’t out of the question. If there is enough fan demand, the team would consider it. He did warn people that even if they began work on a Switch version, it wouldn’t come out at the same time as the other versions.
Thanks for the tip MasterPikachu6