'Worldwide audience' to me makes me think we probably won't get more characters from series like Luckyman or Otokojuku that nobody knows well outside of Japan, instead maybe getting more characters from the already represented big franchises instead having a big diverse roster (since I don't think there's many big series popular worldwide that weren't in J-stars aside from Death Note). I guess there's also Shaman King but licensing just got a little complicated for it in Japan. Maybe Yugioh too if they can figure out a playstyle.
We'll see MHA and Black Clover show up no doubt and probably an assist or story appearance or something from Neverland but otherwise I think they might a bit low on new series representatives.
Hopefully we can get at least get Tanjirou though (and maybe Nezuko too, at least as an assist), it'd be a nice tie-in to the upcoming anime.