Well - the synth-cat is out of the bag!
I've written a sequel to Those Dark Places - PRESSURE: INDUSTRIAL SCIENCE FICTION ROLEPLAYING, written by me & illustrated by Nathan J. Anderson.
It's a slightly different beast - it uses the original rules but has expanded skills so that you can more define your PC as well as use them in campaign games, options to play the game grim but less lethal, vehicles, starship rules, a complete setting from life on earth to the outer stars, expanded information on the companies, optional rules for cybernetics, an adventure, and the original game is fully compatible.
It's out October/November of this year. How very exciting!