The Lord of the Rings Online: Mines of Moria Details

Massively.com has several sets of media and details from the upcoming Mines of Moria expansion for The Lord of the Rings Online. They have a gallery of concept art here, and some info straight from Jeffrey Steefel here.
Jeffrey described Moria (Khazad-dum in the Dwarvish tongue) as 'the most incredible underground world ever imagined' -- this is the dungeon to end all dungeons, a seamless experience through caverns populated by monsters, goblins and generic 'evil'. There's named evil, too -- the Balrog will be part of a player encounter, though details weren't forthcoming on exactly how.

The development team plan to include content aimed at endgame players, including raising the level cap to 60 and introducing a new loot customization system. You will be able to make your items truly 'legendary' via 'unlocking' gameplay -- for example imbuing your weapons with special powers. These items will advance with mechanics like XP and Deeds, and you'll be able to have multiple customized weapons; the good news is that once you're finished with your Glamdring, you can disassemble it and sell or trade the parts that made it great, opening up a new avenue for crafting.

There will be new small-group and epic raid content, and another large-scale PvMP area similar to the Ettenmoors. You'll also be able to unlock achievements and earn your place on the leaderboards with heroic exploits in PvE and PvP alike; this won't just be limited to the hardcore, as the devs will include achievements tailored across-the-board.