Not understanding the post. I think it needs to be cleaned up. I'm thinking you are asking what I think Galactic civilizations 3 will be different from 2.

1. Less races.

2. Some races missing.

3. New races.

4. Races are called factions.

5. More individualized tech trees.

6. Tech specialization.

7. Picking on tech path will eliminate others.

8. biggeOne Que instead of two.

9. Hexes

10. Able to pick bills in the galactic council.

11. better Ai.

12. Idealologies instead of alignment.

13. Tooltips

14. More campaigns.

15. Better ship building.

16. Morale has changed.

17. The way the game list population and credits has changed.

18. You can choose ship roles at the beginning of combat.

There are probably more I can't think of.