Bydd yn golygu y gall ymwelwyr â’r castell barhau i fwynhau holl gynnwys yr Amgueddfa a dysgu am hanes hir y Ffiwsilwyr Brenhinol Cymreig drwy gyfrwng y llythyrau, y cerddi, y ffotograffau a’r eitemau eraill sydd i’w gweld.
"It will mean that visitors to the castle can continue to enjoy all the museum has to offer and gain an insight into the long history of the Royal Welch Fusiliers through the variety of letters, poems and photographs and other exhibits on show.