Ers ymddeol o weithio’n llawn amser yn 2012, mae Dianne wedi dangos ei diddordeb brwd mewn democratiaeth gynrychiadol a gwasanaethau lleol, drwy weithio gyda sefydliadau gan gynnwys Cynulliad Gogledd Iwerddon, The Hansard Society, Pwyllgor Anrhydeddau Pen-blwydd y Frenhines a Chymdeithas Tai Taf. Fel Ymgynghorydd Cyswllt â Global Partners Governance, sy’n helpu i ddatblygu democratiaethau ledled y byd, roedd Dianne yn rhan o brosiect a ddarparodd gyngor a hyfforddiant i Senedd a Llywodraethwyr Gwlad yr Iorddonen.
Since her retirement from full time employment in 2012, Dianne has demonstrated her keen interest in representative democracy and local services, working with organisations including the Northern Ireland Assembly, the Hansard Society, the UK Honours Committee and Taff Housing Association. As an Associate with Global Partners Governance, which helps to develop effective democracies across the world, Dianne was part of a project which provided advice and training for the Parliament and Governorates of Jordan.