Some things that I like to see in the Companion:
- Robot characters - like Droids in Star Wars, or just A.I.s in starships.
- More Alien characters - the ones that didn't get into the core (Droyne, Hivers, etc).
- A comprehensive line Index covering _all_ core books.
- Genetics - legacy characters
- Troupe style play - having multiple player characters each on a large starship, which alternative in play for different scenarios.
- Time travel and alternative dimensions
- Adapting Traveller to alternative genres (fantasy, modern day conspiracy, supers, etc).