The Age of Conan Monthly Update has been published for September. In it, the team talks a lot about the forthcoming Secrets of the Dragon's Spine content update. The blog lays out the plan to release portions of SotDS in episodic fashion from now through an epic conclusion to the quest line in 2013. The blog also talks about other plans that are in the works as 2012 comes to a close.
The plan is then to continue with a combination of new playable areas (as with Turan and Dragon's Spine) and combine that with revamps and unchained versions of the older areas in order to keep them relevant and interesting as the game continues to mature. We want to try and avoid the situation where there is great, fun, content not being used because the meta-game of progression and expansion has moved on. Therefore we will be working on both areas moving forward, which means a ton of new free game updates coming down the pipeline.
Read the full post on the Age of Conan: Unchained site.