How would the northern theater pan out if Soviet managed to blitz Finland doing the Winter war, forcing a de-facto occupation, similar to the occupation of the Baltic states? ... This would open a arctic front between Axis and Soviets, and it could easily become extremely uncomfortable for Sweden forcing them to align themselves to one of the sides (the Allies wouldn't have enough of a foothold to be much more than distant empty promises) ...
What would a front somewhere in the northern Scandinavia do for the war? which party would gain most from the distant and long but sparse front, which arguably guards the possibility for a rapid attack right into eithers (Axis/Soviet) heartland, circumventing the primary army forces, with either a Soviet force running through Sweden (if need be, to hell with neutrality) and helped by a concentrated naval push, suddenly have a Red army in Denmark, or the other way around with an Axis force looping around and targeting Murmansk and/or an even tighter pincer on Leningard
What would a front somewhere in the northern Scandinavia do for the war? which party would gain most from the distant and long but sparse front, which arguably guards the possibility for a rapid attack right into eithers (Axis/Soviet) heartland, circumventing the primary army forces, with either a Soviet force running through Sweden (if need be, to hell with neutrality) and helped by a concentrated naval push, suddenly have a Red army in Denmark, or the other way around with an Axis force looping around and targeting Murmansk and/or an even tighter pincer on Leningard