Everyone is hoping for an October release date for Ledipasvir, I have not heard of a release date for Daclatasvir. Even with a release date I don't think Daclatasvir is a Gilead product so the only way to do Sofusbuvir + Daclatasvir would probably be another off label situation.
Neither is released yet they are both still in clinical trials they are currently working to determine the best course of treatment so as of now now prescribing information has been determined.