Ym mis Gorffennaf 2012, sefydlwyd Grŵp annibynnol, o dan gadeiryddiaeth yr Athro Sioned Davies, i gynghori ar sut i wella darpariaeth Cymraeg ail iaith yng Nghyfnodau Allweddol 3 a 4. Prif nod y Grŵp oedd ystyried pa newidiadau y dylid eu gwneud i alluogi mwy o ddysgwyr i ddefnyddio’r iaith y tu allan i’r ystafell ddosbarth, yn eu cymunedau ac mewn gwaith yn y dyfodol.
In July 2012, an independent Review Group, chaired by Professor Sioned Davies, was established to advise on improving Welsh second language provision at Key Stages 3 and 4. The main objective of the Group was to consider what changes should be made to enable more learners to use the language outside the classroom, in their communities and in future employment.