So far, two DLC packs have been released for other platforms. However, both Dawnguard and Hearthfire have yet to come to PlayStation 3, with no word on if or when they would. The third piece of DLC, Dragonborn, was recently revealed.
Unfortunately, the vague nature of the Tweet from Bethesda Game Studios doesn’t indicate much, except that we should likely expect more news sometime in the near future. In the meantime, let’s keep our fingers crossed that PS3 gamers will finally get in on the DLC their Xbox 360 and PC-playing brethren have already experienced.
We've reached out to Bethesda for official comment, and will update if we hear back.