I liked both hallway scenes but I agree. The idea of fighting in a small space is intriguing, but there are other places they could go. It would also be interesting to see him fight something else than just normal thugs or ninjas. Maybe as part of Kingpin's return, he manages to frame Daredevil for something and the police is after Daredevil. Maybe they manage to corner him in the subway or something and he has to escape while fighting cops. I mention cops as an example because when he is fighting thugs or ninjas, a lot of the time he just fights them in order to defeat them. If he fights good guys (like cops) in a situation where they are chasing him and he has to escape, there would be more stakes involved and could make for something interesting. If they wanna go the one-take route, I could see a cool subway scene where the camera follows him as he tries to escape with cops coming in from everywhere.
Maybe a lame idea but it was just an idea I had.