a brave new world

a ˌbrave new ˈworld

(often ironic) a situation or society that changes in a way that is meant to improve people’s lives but is often a source of extra problems: She promises us a brave new world of high salaries and good working conditions after the reforms.This phrase comes from Shakespeare’s play The Tempest. It was later used by Aldous Huxley as the title of his most famous book, which described a vision of the future.
See also: brave, new, world