I would like to see something like each race get 5 leaders/royal family (king, queen, Imperial leader, Grand Pooba, etc.) that have different bonuses (Research, Planet growth, defense, happiness, attack bonus, Fleet Admiral, etc.). You would use them where there they are needed (best use of bonus).
New spy missions
- to go after leaders (assassinate, bribe, kidnap, ransom, etc.).
New way to win game
- capture/kill all of the leaders of a race.
- Imperial Guards, Secret Service, etc.
- planet facilities to train (spy to assassins, troops to guards, and to train leaders with new or additional bonuses.
- escape pod, for ships with leaders