Warner Bros has released an 8 minute walkthrough video for Middle-earth: Shadow of Mordor featuring pre-alpha gameplay which can be seen below.
Middle-earth: Shadow of Mordor does not revolve around the events of Tolkien’s books, but instead inserts it own chapter in-between The Hobbit and The Lord of the Rings. The title uses the new Nemesis System to bring it to next-gen.
Middle-earth Shadow of Mordor will be released for PlayStation 4, Xbox One, PlayStation 3, Xbox 360 and PC.
http://www.youtube.com/watch?v=T5WL1Ybw9OQ