Mae’n fwriad gan yr awdurdod gau Ysgol Uwchradd Llanrhymni ac Ysgol Uwchradd Rhymni, sydd gerllaw, a sefydlu ysgol newydd o fis Medi 2014 ymlaen. Ar gyfer blwyddyn academaidd 2013/14, mae’r awdurdod yn bwriadu symud yr holl ddisgyblion o Lanrhymni i safle Ysgol Uwchradd Rhymni fel y bo’r ddwy ysgol yn cael ei rhedeg ar yr un safle.
The authority has plans to close Llanrumney High School and the neighbouring Rumney High School and establish a new school from September 2014.  For the academic year 2013/14, the authority plans to move all of the pupils from Llanrumney to the Rumney High School site so that the two schools will operate on the same site.