User blog comment:Eobard95/Is Laurel really dead?/@comment-26537965-20160519213253/@comment-24425431-20160523174516

If he faked her death, I doubt he would have told the team. I think if Oliver truly believed that it would be safer not to tell the team, he wouldn't, especially if he promised it to Laurel (in order to keep her father relatively safe). Not to mention that: "And no offense, none of you are particularly good actors." (Malcolm Merlyn to the Team Arrow, Season 3 This Is Your Sword).

But, truth to be told, I think she's dead. I even hope so, because the "presumed dead, revealed alive" theme is getting a bit too repetitive.