What do we really want?: a 3D simulation that let's us realistically maneuver large fleets and fight them

We may settle for a 2D game for fighting Anglo-Dutch War battles, but what we really want is a 3D game with continuous motion. We want what Privateers Bounty has, but we want better. We want to be able to have a fleet tack in session, at a turn point. We want to be able to keep a fleet in an informal line, where ships adjust speed to stay together. We want to be able to maneuver fleets in a way that feels like our concept of how they really manuevered. We want ships to fight like they really did. We might like to be able to script some patterns of behavior, so that we could setup a scenario, where under AI control, a fleet starts at anchor, but upon seeing the enemy fleet approaching, will weigh anchor, and get underway. Perhaps it is too ambitious a goal, but why not say what we really want, so as we can, we can implement more of what we want.