- Captains. They function much the same as family members, with the following exceptions: They can not govern cities, they can not acquire retinue(s) or vices and virtues that would add to influence or manangement. They start with zero in those categories. They cannot affect your standing with the senate or the people of rome. They do not age, and are not represented on the family tree. This could be toggled off or on during campaign start.

- Squalor. Squalor should have been far less then it is. It's destroying the game. Not only for the player, but for the AI. From the start of a medium difficulty campaign, the AI lost more provinces to rebels then to any other factors. This applies to distance to capital, order, and other similar factors.

- Titles. I'd like to see a return of the provincial titles. I think they were a nice addition in MTW and I'm sad to see them go in favor of the senate.

- Senate power. Make the offices meaningful. Have the appropriate offices actually do something. Like evicting other family factions, determine policy towards foreign factions, etc. As it stands right now, the senate serves no real purpose except to give you a few perks for holding the office.

Well, I guess that's it off the top of my head. Add what you'd like to have seen. :)