In case you don't follow them on twitter (and your only excuse is that you do not have a twitter account), a recent topic the Quest for Infamy team had was, if you could battle any mythical creature in the game, what would it be and why?
Personally, I always liked the Manticore, a creature with the head of a man, body of a lion and the tail of a scorpion. And considering it has the head of a man, it would be interesting to have it be a character in the game (with his body covered with a robe or something) that you could talk to and maybe do quests for, only for it to be revealed later on that he is a monster you have to kill.
I also would love to see something Norse related in this game, but the only monsters I could think of from Norse Mythology are the various giants and the children of Loki