There was one of these nestling in my stocking from Santa. Basically there is a premium additional pack shoved into the original kit. The additional pack consists of brass gun barrels for the oerlikons 2 pounder and 4 inch. There is a full brass etching sheet with numrous brass etchings parts with extra detail to replace or enhance the original plastic parts including gun shields for the main 4 inch and the 2 pounder, oerlikon sights and breech mechanisms, porthole rigols, brass main mast top and yard, brass derricks for the after end of the engine casing brass etch stanchions for all of the ship and quite a few bits more of useful brass with finer detail than the existing plastic parts. For example overlays for the engine casing skylights. There is also a stick on very thin veneer deck overlay for the focsle, quarter deck, main deck and bridge floor. There is also a new set of decals which loses the decals for USS Saucy but replaces it with Decals for HMS Campanula which was Nicholas Monserrats ship. The Campanula decals include the funnel emblem. Other than than it is the original kit with bluebell name plate still included.
If anyone wants to see a pic of the extra detail sheets let me know and I will take a couple of pics and post them.