Multiplayer will be cool, but it annoys me playing as a character in multiplayer. Just give me a nameless assassin, not some other guy. And yeah I saw the website etc, so now the weapons make sense.
The UI looks way more bloated than previously, I like it to be cleaner and simpler.
For a nice change the campaign looks more cinematic and dynamic, but not as open world. Not sure if it is 'Assassin's Creed', but it is cool.