Analyzing the past two films and Rises, Nolan (Director) and his brother Jonathan (Screenplay Writer) are trying to envision a world where they asked the question… "What if... Batman existed in our current world today as opposed to the comics." Thus the feel and directing has a less comic book-ish (if that's a word) look, and more of a real world view.
This film take on Robin is quite incredible when you think about it. Like the previous person in this article wrote, he is an embodiment of all the Robin’s in the comics. In contrast you have Nolan’s Robin (John Blake) who is, at this point, the first Robin “Dick Grayson” to Batman. He’s referred to being hot headed and angry like the Robin “Jason Todd”. For the “Tim Drake” Robin… well, he was the one that was able to deduce batman of his true identity and was also depicted as an orphan. And with the film using elements from the “The Dark Knight Returns” comic by Frank Miller, the role of that Robin was a female “Carrie”.