I completely agree with most of the posts above concerning the non systematical aggressive behavior of the fauna, I also approve the rarity of legendary typed creature, I think that the rarity and dangerousness of combat should be something to stick to. I would like to fight mostly human characters, and I hope that random behaviours will be implemented for them, in fact I can mostly tell about what i don't want to see.
I don't want to see systematically aggressive bandits like in the elder scrolls, I don't want the wilds being overpopulated with bad guys, I don't want to completely get rid of the "coins or life" question, but in some cases I would like to speak to those guys, trade, casual chatting or questing with them, I want them to notice that I'm broke or that i don't own anything fancy, the ideal would be that they invite me to their party an try to stick a dagger in my back while shacking my hand.
I don't want to see tiny squirrels jumping at my face unless they have a reason for it, like having a deadly poisoned fangs which they use after a provocative stance to defend their territory, being infecting by diseases, or being the host of some kind of parasite, in which case and i d like to know about it, visually and acoustically (visible tumor, strange behavior, weird screams).
I don't want to see all of the Tolkien roster once again, even if goblins seems to have a good fan-base here
, at least don't call them goblins or orcs or elves, and don't make genetically aggressive or peacefull race, once one can speak, he should be able to chose between being an asshole or having friends among people whose appearance differ from him.
Also I don't want to be stuck facing a douchebag, who insults me, i would like to make foes among the commoners too and I'm not speaking of systematic warhammer bashing, I would like to be able to threatened them, by unsheathing the previously mentioned warhammer, maybe insult them, I don't know i would like to be able to adopt certain behavior with certain people, positive or negative.
Finally what I would like, speaking about the creatures, is something new, creative, lore friendly, gameplay friendly, and non systematically aggressive.
Oh and before I forget, do a female version, and a child version of everything, No more hermaphrodites beings everywhere please.