Sentence:  The very largest concentrations in the entire complex will have to be rescued from simply more sprawl, because suburbanization and exurbanization continue to bring added pressures on the core. The best way to do this, Doxiadis thought, is to engineer the establishment of new metropolitan areas at only a moderate distance away as nodes in a hierarchical pattern suitable to the <WSD>ecumenopolitan</WSD> phase of human history. Then, in an oracular manner looking even beyond the “world-spanning city,” Doxiadis saw mankind of the future even moving in the direction of an extraterrestrial Cosmopolis, “the city of the Cosmos.”⁵⁶ 
Meaning of the word marked with <WSD> tags:  Of or conducive to the development, befitting the scale, or characteristic of an ecumenopolis or ecumenopoleis.