In some ways it is the same or similar because it's the same engine. There's only so many improvements/changes they can make I guess. I've come to realize this after years of hating madden I guess.
I'm no Madden fanboy, but I'm actually looking forward to this. The new tackling/elimination of suction blocking/tackling is enough for me to buy madden for the first time since madden 04. The new camera angles and shit will be a bonus.
It's still gonna be the same old madden, but it'll be madden 11 with better tackling and more interesting (hopefully) presentation elements. That's good enough for me.