Mark Thompson (Moore College, Sydney) has posted a great response here to Bernhard Nausnera's recent Scottish Journal of Theology article. Thompson notes that David Hohne, who wrote his doctorate on Gunton under David Ford at Cambridge and about to publish it as The Spirit of Sonship, is writing a response.
It does seem that Gunton's theological project has not continued, at least in England, but possibly has north of the border at the universities of Aberdeen (with Webster) and St. Andrew's (with Holmes and Torrance) (see the recent articles in Modern Theology). Theology in England is now a different landscape - so Milbank and Radical Orthodoxy at Nottingham, Oliver Davies and Transformation Theology at King's, Ford and what I might describe (mistakenly) as conversational theology (so his recent Christian Wisdom as chapters on inter-faith, inter-disciplinary, and inter-personal wisdom) at Cambridge, Pattison and Fiddes at Oxford, the newly appointed L. Ayres at Durham (whose book on Augustine due in 2010, will I'm sure not look kindly on Gunton), Higton and Gorringe at Exeter and D'Costa and Crisp at Bristol. I'm not saying this is bad - I like lots of theologians above - but it does seem sad that the kind of theology Gunton was doing and encouraging has not continued anywhere.