What would YOU do with the Source Code
What I would do with it:
1. I would get rid of tradelanes and jumpgates and put Starshatter style jump drives instead
2. I would put in a REAL dynamic economy, a clean one that changes even as you look at it.
3. I would replace the graphics engine with instant rendering mentalray. (Just kidding)
4. I would create *THE C WORD!!!*s that actually work and use energy.
5. I would put ships with moving parts.
6. I would make carrier class caps, which could use a special command view to command their flock of fighters.
No offense about saying *THE C WORD!!!*.