No. Once they invaded Poland, they were doomed from the start.
With the state of their Navy, Air Force and operational doctrine, they had nothing to force Britain to capitulate. Churchill put his finger on it when he said "Hitler knows he has to break us in this island or lose the war". Germany had no means to succesfully invade and conquer Britain. At best approximation they had the forces to force a small beachhead, and be thrown back.
Then there is the fact that the Molotov-von Ribbentrop pact was a marriage of convenience. While Stalin may have been complacent enough to disregard a German breaking of the pact, there is no way there would not eventually have been a war between two ideologies who were fundamentally opposed to each other. With Nazi Germany bleeding out in a campaign against Britain and the US (and a sustained push against Britain would have brought in the US), the temptation to open a second front and grab most of Eastern Europe would have been too great
Any way you look at it, unless you have Wehrmacht fanboi goggles, the strategic situation had always to have been in Germany's disfavour.