I saw an interview of Berthold Staffenberg. He said that he faced some recrimination from his fellow Bundeswehr officers because of his father. There was still very strong feeling that his father was not a patriot, but a traitor.
With Goering, Himmler, Jodl and Keitel alive I doubt the Army would have rallied to his cause. Even if they had, I doubt Stalin would have made peace, but would have kept right on gobbling up chunks of Eastern Europe.
It's curious Hitler was still using the Wolfschanze as the Red Army is nearing the East Prussia border.