Yes, but only in two cases.
(1) If you used the interim procedure. Your ATPL(A) passes should still count with this new ruling so you'll need to do fixed wing Performance and Principles of Flight.
(2) If you are an ex-service pilot who did the Military Bridging course. From memory you need to take two normal papers, I think the two above, and a bridging exam. You should be exempt Ops Procedures because you took it with the Military bridging course.
Otherwise, you'll need to get an ATPL(H) IR before you can convert, from memory this involves three ATPL(A) papers and the special (H) to (A) bridging paper. There is no other conversion from CPL(H) to ATPL(A). LASORS Section J has the details, but I don't have it with me.