Mae pedair gorsaf yn ardal Metro'r Gogledd-Ddwyrain wedi'u dewis ar gyfer buddsoddi ymhellach ynddynt fel rhan o brif raglen y gorsafoedd; gan gynnwys Caer, Shotton, Wrecsam Cyffredinol a Blaenau Ffestiniog. Mae gwelliannau eraill yn yr arfaeth hefyd gan gynnwys gwasanaeth newydd rhwng Lerpwl a Llandudno, trenau cyflymach rhwng Caerdydd Canolog a Chaergybi a mwy o drenau'r awr ar bedair lein arall.
Four stations have been identified in the North East Wales Metro area to receive further investment as part of a flagship programme for stations; these include Chester, Shotton, Wrexham General and Blaenau Ffestiniog. Other planned improvements include a new Liverpool to Llandudno service, faster journeys between Cardiff Central and Holyhead and increased trains per hour for four other lines.