Er y cytunwyd ar yr argymhellion, comisiynwyd gwaith pellach i gwmpasu’r model newydd yn briodol cyn penderfynu’n derfynol ar amserlenni ar gyfer ei roi ar waith. Mae'r gwaith ychwanegol hwn, a wnaed gan yr Athro Robin Williams CBE, FRS, bellach wedi dod i ben.
While the recommendations were agreed, further work was commissioned to properly scope the new model before a final decision could be made about timescales for implementation. This additional work, undertaken by Professor Robin Williams CBE, FRS, has now been concluded.