Two and an half observations that I feel I must offer:
1) I have the Sovereign Stars and played it with three friends years ago. We had fun but there was one thing that was very boring: the book keeping between game days. We used to play all the major battles with starmada and ships that we had pre-generated to be different to each race. The problem was the dinning table. We had to store the game every saturday night and rebuild it the next saturday. As Sovereign Stars is a campaign game, I think that in the next book there should be control sheet to facilitate this operation and to maintain book keeping.
2) The book should have ships for every race of the TI universe (14, a lot, yes I know) and the ships should have upgrades that could be used as the players research new technologies. That would be absolutely beautiful. If you need help, please say so. I'll be glad to help.
Half) To finalize, after doing this - maybe FFG would be willing to cast minis for that ships and sell it in their line of minis. I would buy. And I guess I wouldn't be the only one.