Over-Realized Postmillenial Eschatology

In one of his classes on the gospel of John, Jim Dennison made some interesting comments on theological & political liberalism and eschatology. He said that the kind of eschatology in the New Testament is not a fully realized eschatology. A fully realized eschatology [on the other hand] would say that now the fullest realization of eschatological reality is accomplished. That eschatology NOW is completed - the present time is the eschatological era. Any future time has no eschatological significance. This is the eschatology of liberalism. Also the eschatology of all political and social utopianisms, whether they be fascist, socialist or communist. This is the Immanentization of the eschaton. All political utopians or liberals are Immanentizations of heaven on earth (Vogel). The bringing of heaven on earth now. Your liberal theologies, whether they be neo-orthodoxy, liberation theologies are now fully realized eschatological theologies. No future. Which means they de-eschatologize the future.