Russian Victory Day parade showed couple of new developments which caught my eye: according to news there were arctic versions of Pantsyr and Tor-M SAM launchers.
In a nutshell: Snow track vehicles that are amphibious. If there's room to fit them in the OOB.
https://thaimilitaryandasianregion.w...issile-system/
http://www.thedrive.com/the-war-zone...e-air-defenses