In 1.7, Herobrine's actions was noticed by Notch, and he was made non-existent at the snap of Notch's fingers. But, traces of his existence could still be found, in the form of monsters that did not exist in the past, weird tunnels, underwater pyramids and others. Steve is still alive, the last of the people ravaged by Herobrine and his armies. And before Notch could get rid of Herobrine, he set a curse on Steve so powerful that no one, including Notch, could ever remove it. It was that Steve was doomed to walk the lands of Minecraftia forever and ever. Even when he died he would be reborn right back in Minecraftia, instead of the Aether, where all the good souls go when they die. And he did that, just so he could kill Steve over and over and over... such is the evil that Herobrine was.
People say that Herobrine is gone for good, but if you set your render distance to far and peer deep in the fog, you might just see the human figure in the distance, staring back at you, only with soulless, white eyes.
