I defiantly think a new snowy map is what we need to add next if we are going to add any kind of map. I love that the new update has created more diversity in biomes, with the Grotto underwater, the more Northern Cherika, etc. But of course the majority of the maps are of the warmer climate.
having something cooler can change it up a bit, and make it really feel like you are moving from different biomes, and give the different maps unique atmospheres.
And yus we need it to be a bit... More... Than what South Pole was.
I would love for a really desperate looking area that is completely covered in snow, with a few bushes and dens out of the cold. And maybe, if it wasn't too laggy, the occasional snow storm would be awesome.