I do feel that Bruce's relationship with Alfred, though key to who he is and how he acts, has gone largely unexplored in previous Arkham games, so it's good to see Mr Pennyworth in the spotlight for once.
Agreed. In the comics set during these era I've always liked the fact that Alfred is obviously torn between the fact he is the only family Bruce has, and more importantly feels like family, and the fact he can't say too much to the man who pays him to be there. I've always had this feeling of Alfred looking at Bruce as a stroppy teenager and thinking "OK, I'll let him study criminology and hopefully he'll out grow it...OK I'll let him travel the world and learn martial arts and hopefully he'll get it out of his system...OK he's dressed as a giant bat and shouldn't this phase he's going through have ended by now?" It'll be interesting to see how he goes from that mind set to realising that Gotham needs Batman at least as much as Bruce needs Batman.