User blog comment:Eobard95/Is Deathstroke still evil?/@comment-26537965-20170908150807/@comment-24152851-20170909090949

Grant Wilson was a possible future if the Legends hadn't returned to the present. If they hadn't returned, Slade may not have been redeemed or got killed off, so his psychotic son came for vengeance. Grant probably was born during Slade's time in ARGUS, although Slade might not be aware of him.