Mae’n dda clywed yn Natganiad yr Hydref  bod Llywodraeth y DU am barhau â’i hymrwymiad i drafod yr opsiynau ar gyfer gwella’r M4 yn y De.  Mae’r opsiynau ariannu’n cael eu hystyried a’r un pryd, mae trafodaethau’n mynd rhagddynt am argymhellion Comisiwn Silk a’r cyhoeddiadau diweddar ynghylch cyllido Cymru.  Bwriad Llywodraeth y DU yw cyhoeddi ei hymateb cyntaf i Gomisiwn Silk yng ngwanwyn 2013.
It is welcome that in the Autumn Statement the UK Government has also made clear its commitment to continuing engage with the Welsh Government to explore options for improving the M4 in South Wales.  Funding options are being considered alongside discussions on the recommendations of the Silk Commission and recent announcements on Welsh funding. The UK Government plans to issue an initial response to the Silk Commission in Spring 2013.