There have been some violent moments in Clone Wars, stuff like Ventress force lifting a clonetrooper up and then impaling him through the heart. But yeah for the most part, there needs to be an adult SW show. I'm still waiting for a Clonetrooper to get halved and quartered, or at least beheaded. But they wont.
We will have to settle for our own written creations, for they will always be entertaining and for the adult audience!