Just saw the trailer, and the game looks great visually. The trailer does give me some concerns about gameplay, however.
First, unit movement speed seems way too fast. Hard to gauge without seeing how command and control actually works in game, but if this is another Napoleon Total War, watch them line up, fire two volleys and then charge into melee affair, then it will be a big disappointment.
Second, and related to the first, every third unit in the trailer seems to be engaged in some sort of disordered Braveheart-style suicide charge. That's just wrong as a matter of history. Please tell me the trailer is a bit of poetic license that doesn't reflect the actual game play.