This was a good time to be Wernher von Braun. He was a hero of the Reich, the V-2 bombardment of London gave the Nazi propaganda machine something to work with, and he had multiple projects to work on. Although he may have had concerns about Germany's abilities to win the war, his actions suggest that he felt confident that his team's weaponry could force an armistice, and at Christmas Germany's future was looking pretty bright, with advances on multiple fronts.  
It is often been reported that Wernher was at Schloss Varlar in early December for an award ceremony, but researchers have found that only Dornberger attended, and Wernher received his award at the lavish Peenemünde dinner party on 16 December 1944.