I'm impressed by this game's quality. Most fan games don't get within a mile of a polished release and remain frustratingly incomplete or abandoned, but this game isn't just a good fan game, but an engaging Star Trek game. The sound design, voice lines, and structure are all easy to understand, true to the setting (and the era, as importantly) and the colors pop nicely and fit the style of retro Trek titles. I never knew about Super Star Trek before stumbling on this remake, so this remake/tribute is also helping to expose some people to its inspiration, as well.
I wonder about a sandbox/open-universe mode of play, with random events almost like a rogue-like or MMO. Distress calls resulting in battles or passenger pickup/dropoff, cargo/passenger delivery to different bases/ships, maybe random ambushes in different sectors. Wars could even be random events that add more danger to the previous types. Probably Hell to program but it's an interesting thing to think about.