The third season of Stranger Things could have easily served as a series finale if not for the mid-credits scene, which opened up a new gate of Upside Down intrigue and left us wondering if Hawkins' chief of police was actually history or not. However, we now know the answer to that cliffhanger and a few other details about Stranger Things 4, which has officially begun production but had to be put on pause as a result of the coronavirus pandemic.