Your scenario is way too nebulous to make any proper guesses.
For example, Germany might end up being allied to France and Britain against the USSR even in a CP-victory scenario. Not counting that an ATL Germany, being allied with France and Britain against the USSR may not even be a fascist power at all. And that`s just the tip of the iceberg.
Of course, that`s beside the entire issue of creating a scenario where a united Europe is at war with the USSR - which was Stalin`s worst nightmare materialized and something he did his best to avoid.
More info is needed, and I know that developing a scenario where this happens would inevitably leed to the thread focusing on the scenario and not the main point of the thread, but this is AH.com, and that`s how things work here, I`m afraid.