15.—(1) Copyright in an existing copyright work shall continue to subsist until the date on which it would have expired under the 1988 provisions if that date is later than the date on which copyright would expire under the new provisions.
(2) Where paragraph (1) has effect, section 57 of the 1988 Act (anonymous or pseudonymous works: acts permitted on assumptions as to expiry of copyright or death of author) applies as it applied immediately before commencement (that is, without the amendments made by Regulation 5(2)).