Postwar planning assumed imperial survival

Did British plans made during World War II generally assume that the empire would survive afterward?

Yes. Many postwar assumptions were based on imperial survival, even though history did not follow that path.

Many British plans made during World War II assumed that the empire would survive after the war. Much postwar planning rested on that expectation, though history took a different course. The response does not identify which plans depended on the empire or explain how they changed afterward. Wartime planning therefore has to be read through the assumptions available at the time, without treating the later outcome as inevitable.