A couple possible ideas to make life on a space station a little more interesting and risky could be space debris or asteroids. Basically take the meteoroids from the moon and add them to space stations, though with less frequent impacts since it is a much smaller target. Could give you reason to need airlock redundancies and a jet pack for repairs.
Not a huge leap of an idea, but shakes things up a little
Not a huge leap of an idea, but shakes things up a little