Bishop McGuckian was appointed to the Down and Connor Diocese in February by Pope Francis.
He has served the Raphoe Diocese since 2017, with Bishop McGuckian being well-liked by many across his tenure.
A mass of thanksgiving for Bishop McGuckian took place in Letterkenny just a few weeks ago.
Bishop McGuckian will officially take up his new role this coming Tuesday, the 19th of March.
Meanwhile the formal ceremony to install him as the new Bishop of Down and Connor will take place on Sunday the 14th of April.