I'm talking about the cultivated not-quite-British accent associated with people like Katharine Hepburn and George Plimpton. Nobody really spoke this accent natively, but it was very widely cultivated in the years leading up to WWII. It has since died out except among eccentric fictional characters like Frasier Crane. Would it be possible to keep this accent vital and flourishing, with lots of new young people learning to speak this way up to the present day?