Six new railway stations on the South Wales Mainline headline a package of measures recommended in a report established to reduce M4 congestion without constructing a relief road. The existing railway lines between Cardiff and the Severn Tunnel would be reconfigured to enable the provision of a frequent local service.
New stations were proposed at Newport Road (Cardiff), Cardiff Parkway (St Mellons), Newport West, Newport East (Somerton), Llanwern and Magor.
Further recommendations included:
Delivering the Abertillery branch off the Ebbw Vale line
Adding two railway stations at Caerleon and Maesglas

Source: gov.wales
Great to see Wales setting the pace with new stations!