I would like to see some sort of damage system from being in one. So unless your a Nord or have warm clothing your going to take on ice damage. But i would like to have a decent warning to if there's one coming. like you can hear and see it in the distance before it gets to you. That way you can run, find shelter, use fast travel, or prepare for it.
In hardcoe mode i would like to see the damage alot higher from it so if your not ready you will die fast. if your a Nord that's not ready you will take damage but at a slower rate. so basically no matter your race your going to have to be ready of suffer the consequences