Bydd gwasanaethau rheolaidd bob awr ar lein Cambria rhwng Amwythig ac Aberystwyth, byddwn yn ychwanegu trenau at lwybrau Caerdydd-Cheltenham a Chalon Cymru ac yn cynyddu'r gwasanaethau ar hyd arfordir Cymru. Erbyn mis Rhagfyr 2018, bydd yna saith trên y dydd rhwng Abertawe a Harbwr Abergwaun, gan alw ym mhob gorsaf ar y rhan fwyaf o deithiau. Yn 2022, bydd y gwasanaethau Abertawe i Amwythig (trwy Galon Cymru) yn cynyddu i bum trên y dydd.
There will be regular hourly services on the Cambrian line between Shrewsbury and Aberystwyth, added trains to the Cardiff-Cheltenham and Heart of Wales routes and an increase in services along the Cambrian coast. By December 2018 there will be seven trains per day between Swansea and Fishguard Harbour, calling at all stations on most journeys. In 2022 the Swansea to Shrewsbury (via Heart of Wales) services will increase to five trains per day.