Thanks for posting. Not too interested in the upcoming "Haunted" Impulse arc. But I am intrigued by the interludes and the Martian Manhunter/Batman story.
As for the concluding "Detective" arc, I thought it was okay. I didn't love it like I wanted to. I do wish that Miller had been allowed to make Nightwing Stephanie Brown instead of Barbara Gordon. I know this is a Smallville take, but the Nightwing character felt more like Stephanie than Barbara to me.
I liked the take on Mr. Freeze quite a bit. Prankster was okay. Though I sort of like the nod to the movies with Otis, it doesn't make much sense for Smallville's Lex to keep Otis around. Hopefully Miller will tell us the how and why Lex does.
Overall I think the "Detective" arc started out strong but I started to lose interest. And I really, really wanted to like it more than I did.