In this sense then I agree, although I strongly rebuke the idea posted earlier, that the Soviets were on the verge of launching an offensive themselves in 1941, and that the Germans simply beat them to the punch by a matter of days/weeks/months.
Without a doubt though, with the nazis ruling Germany, and the western allies temporarily subdued, war would come to the east.
The reason why hitler would almost always declare war before Stalin, is because the USSR can outlast Nazi Germany, te USSR doesn't need to conquer land to stay relevant militarily and economically, the Soviet Union was much more capable to play the long game than Germany.
Edit: a further thought I had after that^above^ rambling, is that notwithstanding the hardships of life in USSR in that era, the USSR's centrally planned, communist system did one hell of a job organizing and supplying the war effort. Such a thing was utterly inconceivable to most of the world prior, nonetheless Hitler.