Well, we can confirm from one of two new gameplay trailers released to day that the game includes large rats. Check that box off.
It also seems to have intense combat with the undead (as seen in this first clip)... and against phantoms and ogres, as seen in this second clip in the gallery above.
One of the hooks for this game is that, even though you play alone, you can recruit computer-controlled pawns and have up to three fight at your side in your very own fellowship. If you play online, you can lend your pawn to other players which will level your pawns up.