'Book 10: The City of the Kings - Battle for the Ettenmoors' is the next major overhaul to the game, mainly to the Ettenmoors keep system!  Check it out:

Book 10: The City of the Kings, the second major update to The Lord of the RingsTM: Shadows of AngmarTM, features a massive overhaul to the Ettenmoors keep system. The update boasts over forty new quests, all with major impact on the forces defending or assailing the different keeps available

When planning for Book 10, we took a look at the feedback we've received from the community since launch and compared this with our data. Through this process we discovered that some pretty aggressive changes were needed to make monster play an even more compelling system. I'll explain the different and new dynamics introduced to the area, along with several other enhancements.

To view the entire article about Book 10 click here, and here for the EU version.