The Lord of the Rings Online Session Play Detailed

Turbine's official The Lord of the Rings Online: Shadows of Angmar website has been updated with an overview of the game's upcoming "Session Play" feature.
Session Play is a new system that allows you to play as a character other than your normal character. These characters do not have permanence, so you don't keep them like you do your Free Peoples or monster play characters. You could play as a Ranger, a Troll, or... a chicken. It's an opportunity to explore Middle-earth from a different - and sometimes unexpected - viewpoint.