All GTA V DLCs Are Timed Exclusive for PS3: Rumor
At recently conclude GameStop Expo 2013, Sony shared an interesting image which may excite Playstation fans as well as GTA Community. Sony (via image) shared list of publisher and developers that are working on some exclusive content (not necessary exclusive games only, DLCs content) for Playstation platforms.
Now the thing to notice in the list is that it features Rockstar Games as well (developer currently working GTA V). Does this mean Rockstar Games and Sony have signed an agreement to bring GTA V DLC exclusively on PS3 first?, who knows everything is possible.
Another possibility is that comes to mind is Rockstar's AGENT?, You can check out the image below.