Flesh out the (human) villains more
We have no way of knowing exactly what Hopper’s going to get up to in that creepy prison—he could escape in episode one!—but it wouldn’t hurt Stranger Things to make his captors more than one-dimensional, generic-1980s-issue Russian baddies. Same goes for any sinister scientists Eleven happens to encounter, which seems destined to happen. Why are they so invested in their evil cause—it can’t just be a Cold War thing, can it? The more interesting they all are, the richer the inevitable conflict will be.
