Netflix has announced that its hit series Stranger Things will end with season five. "At the time, we predicted the story would last four to five seasons," said creators Matt and Ross Duffer. "We are hurdling towards our finale. season five will be the last." It's been three years since season three of the series, and according to the brothers, the fourth season has been the most challenging. The first part of season four premieres on May 27. What do you think will happen in season four?