Caves Update Biomes - Ice Caves!!!

Ok, we all know that on the livestream last year, it was talked about 3 cave biomes right? lush caves, dripstone caves, and the deep dark; and i was asking myself if these are the cave biomes that are going to be added, because, i think it could have more; caves like : ICE CAVES - a chance of generating on mountains, a chance of generating on pretty snowy biomes, and in the ice biome; the inside would be of ice, packed ice, maybe some spikes of ice Instead of stone, like in the dripstone caves? There would be snow only on the open to the sky parts, and maybe some ores texture variants, to the ice, like did to deepslate, maybe a new variant of zombie would spawn in there!