From the digital bits

The set will feature more than 50 additional minutes of footage, including some 300 additional effect shots. Among the new scenes we were able to preview this weekend were: the final confrontation between Gandalf and Sarumon at Isengard, the "mouth" of Sauron at the Black Gate, Aragorn revealing the sword Anduril to Sauron's eye in the Seeing-stone, the confrontation between the Witch King and Gandalf at Minas Tirith, more battle footage on the Pelennor fields, Frodo and Sam marching with Sauron's forces disguised as Orcs, Faramir telling Denethor that he would never use the power of the Ring, Aragorn looking down upon a fleet of Corsair ships from a ridgetop, Faramir and Éowyn at the House of Healing, Merry pledging allegiance to King Theoden at Gondor, Aragorn, Legolas and Gimli narrowly escaping an avalanche of skulls deep inside the Dwimorberg and MUCH more.