I think theres 3 of them:
The Hobbit - It's based on the famous novel, The Hobbit, obiously. It's about a story of the Dwarfs, a dragon Smaug has stolen their Kingdom and hope to retrieve it.
LOTR War of the Ring - Wow A LOTR RTS game! If you think i'm on crack, go check yourself on Gamespot. It's already announced! So excited!!!
LOTR The Return of the King - I hope it's nothing like the Fellowship of the Ring because I honestly thought that game stunk a rat's ***. I hope it's something like the Two Towers.