From the Devs message to the community found here:Before you know it, youll be crossing the Misties and riding fiercely among the Rohirrim, delving deep into the mines of Moria, assailing the dark walls of Isengard, visiting the forest homelands of Galadriel and the Ancient Ents. New adventures and features are coming your way as well, to challenge and inspire you on your grand exploration of Middle-earth.
http://www.lotro.com/article/477
Just wish we could get some hints at HOW they are going to open up these new areas. Purley level cap increases, new areas and quests covering all levels or new areas that are entirely self contained?