meleebrawler
Smash Hero
Even Smash 4 got new modes in it's updates (namely the online tourneys). Online stuff is the most likely to be updated in general (and there's already a history of it), not just because of flak directed at it, but because slow burn is generally how Nintendo implements that; they want to see an audience before investing large amounts in fully featured online. Though, I could also see updates to World Of Light in order to better implement the DLC fighters and franchises.Well, that's a good point. Right now, "no more DLC, the fighter pass is it" is a fan rule until further notice, when things like Fortnite and Diablo get a gorillion seasons, never mind DB Fighter Z having two.
If this update adds new modes, that'll be a definite sign that the hype train ride has just started.