Seems like they're aping the metal bat-logo from Batman Begins. Mind you, it's fitting given the sewer cover motif and whatnot.
Unless the story is flawless, I don't see it topping the first live action movie. Despite the fact that it was made more in response to the kid-oriented fanbase of the cartoon than the gritty adult-themed comic, the movie itself was pretty gritty and dark. Characters were tortured, near death, lots of emotions in play, etc. not to mention it just being a technically well-made film. The sewer scenes were superb, and the fights were impressive given the suits the martial artists had to wear. They really made it look easy. And the Jim Henson Creature Shop did a great job making the turtles distinguishable from one another. The lip movements weren't perfect, but you got the idea. Not to mention . . . .CASEY JONES!!!
"That was a crime. . .you purse-grappin' pukes! And this is, uh, THE PENALTY!!"