Firstly, its not clear whether you have a UK CPL or a JAA CPL from the information you have given. Any licensing action that requires action by the CAA will require the holder of a JAA licence to have it reissued as an EASA licence. If the action is carried out by the Examiner then you don't need a new licence. If its a UK National licence, then it can stay as a UK licence but its validity on EASA aircraft will be limited to April 2014.