The outdoor and adventure skills school, Outward Bound, has unveiled some awesome minimalist cabins they have around Colorado, and I am all in on this one. I hope this is something that catches on in other areas, and it sounds like it might be from this Gear Junkie article.
Keep it simple, easy, and maximize the space. I hope this goes beyond Outward Bound, because if you’re looking for your own, wilderness getaway this is an amazing idea. Some are winterized and have electricity, but I think that’s the nice thing about it, customize it as much as you would like.