So, I am a big fan of these 'books' of "J.R. Ward" and a few days ago I saw in her facebook a link to the "iflist.com" where the fans of the Brothers would choose their dream actors or filmmakers.
Some of the fans even sugested TV channels like "HBO", "FX" , "Starz", "SHOWTIME", etc. I think these are good channels for these type of 'books' (remember "True Blood" or "Spartacus"?). I even read that the actor "Jason Momoa" (Conan) is interested in play the role of "Wrath" (I would love to see that).
Me personally, I don't want a movie because movies tend to cut a lot of info from the 'books'. So a TV series would be the best option (a season