Since the news about the Freemode DLC hit yesterday. GTA V Story DLC is on hold once again. Since the focus is now solely on GTA V Online. There's no time to work on the story DLC at the moment. I was really hoping to see a story DLC, but that's probably not going to happen. IGN recently had an interview with the design director, and Producer of GTA V Imran Sarwar regarding if there will be any story mode dlc content in the works. This is the answer he gave.
“Right now our focus is on GTA Online which has exceeded our expectations. We currently have all key members of the team that launched Grand Theft Auto V focused on supporting GTA Online in every capacity. The community we’ve been able to foster is massive, growing each day and we have so many ideas that have yet to make it into the game. The evolution of GTA Online on these newer platforms is also an exciting prospect as the power of those systems is going to allow us to achieve even more.”
So basically there's no hope for the story Mode DLC. Rockstar's main focus is GTA Online right at this moment. We've had Story Mode DLC's in the past for the Grand Theft Auto series', but from the looks of it Grand Theft Auto V will not be having any Story DLC in the near future. Freemode is going to come out this Tuesday, but many people are going to be having that one question in the back of their mind. When will the Story mode get a DLC. Time will only tell, but for now we'll just have to wait.