I think a lot of it will have a similar tone to Arrow (not this show's fault, I think Arrow is a lot closer to Daredevil than the Green Arrow in the comics). The Wire aspects will probably be in its "gritty street level" aspects. It's clear that Bendis took inspiration from that show. On the other hand, I doubt the show will be as balanced a portrayal of all the players involved. The Wire was truly about Baltimore, not the police. This show, on the other hand, is about Daredevil, not Hell's Kitchen. I think we'll cover a decent amount of Wilson Fisk (in an apparently somewhat sympathetic way), but any street-level characters aren't going to take on the same role (that being said, some Daredevil runs, particularly Ann Noccenti, seemed to focus on everyone but Daredevil to some success).
Law and Order (for all its flaws) still remains the gold standard for legal drama. The show is far too procedural to compare to Daredevil, though. In addition, it takes the side of the prosecutor. One of the most underrated legal dramas, that would actually make a great point of comparison, would be David E. Kelly's The Practice. It's too late to make any changes now and I doubt they're reading what I write anyway, but my suggestion for anyone who wants to make a show with legal components is to watch that show. It has a grounded, realistic, morally ambiguous take on the criminal defense attorney that works quite well.
As far as Batman. I doubt this show will be like Gotham. At least from what I've seen, that show has a bit more camp than this will. But it's hard to call Gotham a Batman show when it doesn't have Batman. The superhero (particularly the traditional superhero with a secret identity) is a wildcard that isn't there. Otherwise, Batman always seems to be more secure in his position. There's never really been a show about Batman learning the ropes. Even if he's just getting established, Batman always had far more resources at his disposal than Daredevil, who seems to be scraping by quite a bit more.