Haha sure is! It happens quite a lot that people actually have the same ideas in their heads, to me it really shows that we want the same thing out of this game
Anyways, I still think the opening scene (if it'll be the fight scene between Orpheus and Lucius) should still be quite mysterious. I'd actually have the 'calm' part be the history of Lucius and Orpheus, then a scene where Orpheus turns evil, and then we flash forward to the fight scene. No mention of Animus changing sides etc. I'd prefer that the player gets to know this later on in the game.
The focus in the opening scene should be Orpheus and Lucius imo. Anyways, can't wait to see more of your work man!