Ice Age Biome (Frozen depths)

I think an Ice Biome would be a great asset to be added to the game. I imagine it as an outer biome to the passage, or as an forth biome to complement the azeos wilderness; sunkeen sea and the dessert of beginnings. It could add as well a bunch of new features, such as: mobs (wolf kinda creatures; caveling-nomads that are immune to fire damage and wear a thick layer of animmal fur); new bosses (a big mammoth creature that drops a new kinda of material like fangs and ambar that a required to craft new weapons and armor); new mineral like adamantium; new pet to the biome like a small furry creature that sniffs around and dig up items; new items and weapons.
It could have a sub biome simillar to the shimmering frontier, with a diffrent kind of aliens and new alien tech labs (more advanced and more diverse)
As a name to it, i tought about - Frozen Depths -