When it comes to films and games revisiting an old world with its history and myths is always far cheaper and easy to do than making up a completely new one – this is why Square Enix created Fabula Nova Crystallis. Now there is no problem revisiting and re-using old ideas but you do not have to keep ending every single game and film with a cliffhanger or setting it up for a sequel when by itself it would have done just fine but welcome to milking things.