If this is open world then it needs to be an RPG where we create our own character and choose their race and origins (like Dragon Age: Origins). People have been waiting for a LOTR RPG like this for years now. I know LOTRO allows for all this but that's an MMO suffering from the problems that plague many MMO games (i.e similar repetitive traits). Everyone's been wanting a single player LOTR RPG like this for years.
Give it WITN's combat and we have a instant winner on our hands.