Also: As far as Coliseum, you will have quite a bit of control over managing your warriors, and their "attitudes" when they fight (you can set their starting strategies, like Be Aggressive, Be Cautious and Fight like Normal, etc). They'll be plenty to do as far as the management end of things go, which is what this game's focus is, along with very dramatically written fight sequences.
On that subject, one thing i'm toying with possibly including is adding a "control" feature during the combat at certain points, where you can give orders or change aggressiveness to your warrior DURING the fight itself. Hmm...