In 1944, Josef Wirmer designed a Nordic-like flag for Germany and after the defeat of the Nazis in WWII, German conservative politicians proposed it when drafting the Basic Law. What would it take for Germany to adapt this flag rather than the return to the Weimar flag (as OTL) advocated by the Social Democrats?
Furthermore, what would happen in East Germany? Would they use the Weimar flag until the dissolution of the country or would they switch to a more "communist" flag like East Germany did in 1959?