I don’t think so. The Americans, French and British would all be threatened. The B-29, which was just coming into service (of which we "loaned’ one example to the Soviets), would have been redirected to the European theater. V-2 rockets and V-1 cruise missiles would have been brought into service, since the Americans had captured examples and already built copies of the V-1 before the end of the war. German supersonic aircraft, like the DFS-346, which was almost completed by the end of the war, would have been brought into service, along with the supersonic version of the Me-262, the first prototype having been destroyed by Allied bombing during the war, and the Horten H IX stealth fighter, which had begun series construction right before the end of the war, would have gone into full-scale production. And the German air and ground forces would have been reactivated for the most part. The German “Maus” super-heavy tank, of which two examples had been completed, would have gone into production. The Me-262 would have been upgraded with the fully interior mounted “Berlin” 10 centimeter radar, of which examples had gone into production before the end of the war.
The Russians had no supersonic or high-speed aircraft until they began using captured Me-262s and Arado-234s, and were in the midst of designing their own. That would have been interrupted. The Soviets had no atomic bombs at the time. Strangely, the British would sell examples of their Nene jet engine to the Russians, which was copied, mass-produced and fitted nicely into the MiG 15, which was a copy of a German design, right before the Korean War in 1950.
Ed