I would say that the Madagascar Plan could actually be carried out now that Germany made peace with the British.
Wiki on the Madagascar Plan said:Although some discussion of this plan had been brought forward from 1938 by other well-known Nazi ideologues, such as Julius Streicher, Hermann Göring, and Joachim von Ribbentrop, it was not until June 1940 that the plan was actually set in motion. Victory in France being imminent, it was clear that all French colonies would soon come under German control, and the Madagascar Plan could become reality. It was also felt that a potential peace treaty with the United Kingdom, which in a few weeks' time was about to experience German aerial bombardment in the Battle of Britain and whom the Germans fully expected to capitulate as quickly as the French, would put the British navy at Germany's disposal for use in the evacuation.
Wiki on the Madagascar Plan said:The resistance of the United Kingdom during the Battle of Britain, and Germany's failure to achieve a quick victory by September were the ultimate causes of the Plan's collapse. The British fleet would not be at Germany's disposal to be used in evacuations; the war would continue indefinitely. Mention of Madagascar as a "super ghetto" was made once in a while in the ensuing months, but by early December, the Plan was abandoned entirely