Yes, you can resurrect your past character. For now, you can set loud alarms on the body before resurrecting, it will "protect you" at the time you set the alarm, especially if it's a bit far from you. For example: you crouch and shout, which will make the zombie stand still outside a building. You sleep nearby, and since you set the alarm, it should attract nearby zombies, giving you a chance to escape. And about future plans, I'm still thinking about it because the logic of zombies is mainly to attack the player, so I need to figure out how to make them think other zombies are players.