Fused Zamasu and SSGSS Vegito are the two new characters that will be joining the roster of Bandai Namco and Arc System Works acclaimed fighting game
Dragon Ball FighterZ.
These characters have yet to be introduced on the US version of
Dragon Ball Super but will still be making their debut on
Dragon Ball FighterZ as Bandai Namco have officially revealed that the next DLC will be coming out on the 31st of May. The inclusion of Fused Zamasu and SSGSS Vegito makes 4 officially revealed characters out of the 8 that were announced. The first two characters to be released were Broly and Bardock.
According to some datamined files for the game, the other 4 characters remaining are Goku Normal(Base Form), Vegeta Normal(Base Form), Cooler, and Android 17. It seems that Bandai Namco and Arc System Works don't want to spoil the identity some of these characters so it is pretty safe to assume that the next two characters to be announced will be Goku and Vegeta's Base forms. The other two characters could be considered spoilers for some fans that opted out of watching the Japanese run and were waiting for the English dub, so it is likely that they will be kept under wraps until the next story arc. Although, truth be told, Fused Zamasu and SSGSS Vegito were already spoiled ahead of their debut on the show so, maybe they just don't worry too much about spoilers.