Hmm. A hard one
Team surrender option becoming a possiblity if the enemy holds a considerable sway over you in all 3 rankings: subject to a vote.
Easy (Non-modding) removal of the faction cap of 10 players. For our nice powerful machines
More large maps.
Ablity for players to sumbit their own maps on a section of the website for public testing, if popular considered by dev team for inclusion in game.
Very fast and Very slow options
For the A.I to be "impressed" by more then just missions, attacking a enemy of theirs reguardless if they requested you should improve relations, likewise attacking a ally of theirs would drop their opinion of you.
For the A.I to be less chummy with other A.I in unlocked games.
Disadvantages to allying and not just advantages please, its to easy to gang up on people and take a "team victory" in a non-locked "ffa". Things like making you more vonerable to being scouted, earler warning to enemies of your fleet movements etc as your faction is infiltrated by spies let in from allied forces.
Damage caused by the planet bombing ships should be higher then a capital at basic level.
Surrender to player option: you admit defeat to a player or team and for the rest of the game can continue to play if you wish, but must serve as a vassel. This can had disadvantages of having to pay tributes, your troops being forced into combat, but you get to continue playing and it will not count as a loss in stats (shouldnt count as a win either).
Thats about it for now, first post also Hi everyone