MultiVersus got a new trailer showing off progression and how to unlock new rewards in game. Playing the game earns you gold which can be used to unlock new characters and perks for each character. You can also unlock characters faster by buying premium currency with real money.
And of course there will be a Battlepass.. because of course there is. You know how this works by now. Unlock skins, emotes and more by playing the game and earning tier rewards. Pay real money to unlock the premium track to unlock more stuff.