Bluehole had a short showing at the Microsoft conference, but they showed the progression of their maps. There are already 2 maps available, with Shanhok coming this summer. At the very end of the trailer, they showed someone walking through the snow. They also said that this map will arrive this Winter 2018.
Along with the snow map, War Mode also looks to be making its way into regular rotation. I give it to Bluehole, they continue to provide new content to their game despite how they’ve fallen back in the Battle Royale race.