Well you see, if we’re talking about gameplay, a snowy map can have a few unique features:
But hold on… I have a strong feeling of deja vu… Didn’t we have this conversation before?
A snowy map can have a few gimmicky mechanics that are unlikely to be featured on a warm map. They might have been used before but on different maps and under different circumstances, this would still work greatly and we’re not looking for some sort of breakthrough here.
Esthetics wise a snowy location would definitely stand out from multiple sunny locations of WoA. Hokkaido treatment can be avoided as we have a lot of other maps that feature large outdoor spaces, they just as well could have been covered with snow. And a snowy location can really be more than a frozen wasteland you seem to be thinking of…