User blog comment:ZombifiedRipper/Possible Chance that Ra's Al Ghul May Appear/@comment-203.218.205.254-20131024122459/@comment-24034641-20131026032710

Both Slade and Billy were "Deathstroke" in this series, with Billy dead, it's just Slade left, however we don't actually know just yet what happens to Slade on the island, all we know is that Slade survives and that he will appear in Starling City at a later date (which was confirmed in an interview and on twitter) however at this point in time, it's unknown whether he'll show up as Deathstroke or Slade Wilson.