What this would entitle is certain things, like relationships, can be dropped without any effect at all to your characters. Instead of dealing with it in character it can just have never of happened. It also pertains to certain events and plots that happened in the games past that could be redone at a later time if people want them.
This does not effect anything you don't want changed. Like the 'relationship' between Julian and Sofia for example. That would stay since both players probably want it.
It also wont cause threads to have to be deleted unless the players wants a fresh start. Like Hope for example could just be arriving.
Let me know your votes and what you want changed for the game and your characters in a response below.