Yes, we finally have an actor who will play Jace Wayland on the big screen. Awesome. Apparantly Jamie Campbell Bower will be that lucky person. It was confirmed yesterday by Cassandra Clare herself.
It was who MTV's Hollywood Crush posted the news first, though I had no idea until I saw CC's post on Twitter and everyone was fussing about whether or not it was true. Fans wanted confirmation and all that.
I guess that now they will finally start casting the rest of the gang: Simon, Isabelle, Alec, Magnus... (I'm specially waiting for Magnus because I'm a huge fan. :p). Can't wait for the film and all that.
BTW, Lily Collins was cast as Clary. I had no idea about this! Until recently.