Now that Malcolm Merlyn is head of the League of Assassins, could he use the Lazarus Pit to service his own needs, and bring his son Tommy back to life? Its certainly something that has been speculated on, and there is the need to take into consideration just how long the characters been dead (since the end of season 1). The theory is that Tommy could return, but wrong in some way, which would lead to him having to be re-killed by either his father or Oliver. While the producers have stated they wont be falling on using the Pit just to bring any character they want back, there would be a demand for Tommys return, and he could fit into the story arc of either Oliver or Merlyn, although it may be good if at least one character on the show would actually just stay dead.