Played the game a bit. Thought I'd post some impressions.
The game is assassins creed. Plain and simple. There are some new mechanics, like dressing up different clothes for different abilities, but by and large, it is the same formula. Climbing feels more nimble and faster than before, and combat is still the same ol' counter to win. Multiplayer is just an ios type game where you send henchmen to various nodes on a world map and gain points, which is disappointing. But the single player mode, thus far, appear to be a full fledged assassins creed game, with no compromises as far as the gameplay is concerned.
Technically, the game is pretty good. Framerate has dips, but is perfectly playable, and yes, the game has aliasing. There are plenty of pedestrians on the streets, and at a busy intersection, i can see up to maybe 20 pedestrians when I pan the camera around, so no worries about the city feeling dead. I really like the music and soundtrack, but man, the French accent annoys me to no end.
That is about all I can say for now.