I like the gameplay - it's been pretty samey for most of the series but you're talking about a)ubisoft and b) massive corporation wanting to make money from a series and keep the fans happy.
I played through Chaos Theory last week and it's a great game, lots of nice features but the cutscenes were weak as shit.
With Double Agent they improved that aspect and developed the story, with this new one they look to have gone balls out and make the game much more than it was in its first outing.
I think they have a great series that is really strong, and the fans are wanting something more than just "12 new moves" by now, and ubisoft look like they're giving it to them in massive amounts.
Frankly I will be buying this game based on the trailers alone. I bought DA on the box, so ya know whatever - whine all you want, ubisoft have my money again.