Ringer Fan Andrew just dropped us a line indicating that E! Entertainment in the US would be showing a preview of Return of the King on their live show this evening at about 7pm (presumably EST, but not certain). Apparently we should expect to see something around 7:25-7:30pm!
Update: Ringers Bethany and Mattforce sent in these reports detailing what E! showed. If you live outside the USA, or just plain missed it, you might like to have a read. [More] Major Spoilers!