I know I'm a bit late but I think that a lot, if not all, vehicles will be in the dlc and go in the cold zones because I think it would be stupid that they can go in volcanic zones but not in artic ones. How I see it is that there will be an upgrade…
I don't think this would be part of the expansion because it will be about the artic and I cannot picture them in the artic either but I still think it could be really awsome (in the artic or not)!
Well if I am not mistaken we can see it in the developement following thing found on this web site but it's been a while since I didn't look at it so I'm not sure if it is not somewhere else too
I personnaly think they won't because subnautica as always been a very "stable" game when we are talking about it's environement. Plus I think this would get us (or at least me) confused about where we are going since it would neve…