For test server players on both European and US servers, Turbine and Codemasters (respectively) has patched Book 14 for testing!  From the European site:

The LOTRO team continues to churn out new content at an ever faster pace. Here we are today with Book 14 and a batch of fresh content including new dungeon areas, creatures, and of course updates to Eregion, the main quest line. Check it out:

Welcome to the latest free content update for The Lord of the Rings Online: Shadows of Angmar! Book 14: The Ring-forges of Eregion brings a wide array of changes to LOTRO, including the addition of Eregion, the continuation of the epic questline, and preparations for Moria! The team has also been hard at work adding even more player-requested features to the game!

The European and North American test patch notes are available on their respective sites!