According to Top5Gaming, We are expecting to see Omni-Man and Atom Eve and probably Invincible in Fortnite! But since Fortnite added an age restriction update, I don’t know if these skins will be blocked. Unfortunately there is no expected date for these skins to come out, so we have to be patient.
Usually some days from a leak, not so much (Still remember Dragonball, it was very quick). The age restriction is not for Battle royal luckily