Perhaps, perhaps not. In the TL I did about this Stalin found another way to convince himself that the invasion wouldn't happen or at least would come only after a build up of tensions like prior to Poland, which didn't come. That was perhaps unrealistic for a Germany in peacetime, so perhaps Hitler would have had to have a tension building event with Stalin prior to war as he did with his pre-war conflicts, rather than a surprise attack. Hitler apparently worried that if Britain made peace he wouldn't be able to rouse the German people for war again with the USSR. If the Soviets though are more prepared for war that might actually hurt them worse in the end, because it puts more forces closer to the border in range of a Luftwaffe double the size, while the USSR is no more mobile and capable of handling German maneuver warfare and German is not blockaded and fighting on other fronts. The extra German forces and extra Soviet preparations might end up being a wash, but the more Soviet forces that are destroyed near the border means less the Germans have to deal with deep in when they have less supplies and ability to strike deep and hard.