As they are part of the linguistic continuum of the whole region, their involvement would not only benefit those communities themselves, but also the four counties currently involved in the programme.
Byddai eu cynnwys nid yn unig yn llesol i’r cymunedau hynny eu hunain, ond hefyd i bedair sir bresennol y rhaglen gan eu bod yn rhan o gontinwwm ieithyddol y rhanbarth gyfan.