The post-war results of a swifter Soviet victory in WW2

[ObssesedNuker]

Interesting... A Soviet aligned Denmark would really change the strategic situation in the Baltic and North Sea -

Quite.

even moreso if the Soviet zone in Germany included the Kiel canal...

We are definitely looking at a Inter-German Border being further west.

even moreso if the Soviet zone in Germany included the Kiel canal...

That is a probable.

Mind you, if the Soviets were to advance on Berlin so far in '43, might the Germans start handing over occupied territory to the allies as fast as they can? That might see Denmark end up being reached by the British first anyway.

They could try to do that. But if the Soviets have seized Berlin by the end of November 1943 while the WAllies have just started crossing the Rhine then the Soviets probably make it there first anyways. Your proposed Hannover-Stuttgart demarkation line puts the meet-up between the two is solidly west of where the German-Danish border is. The maths do not work out in the WAllies favor.