The BHR is a Wasp class LHD - the class totalled 8 vessels.
They are being replaced by the America class LHA's of which there are 2 completed , one building and 8 more on order. Most of these will be like the 3rd vessel Bougainville with a well deck which was not installed on the first two, Far better to order an extra LHA I'd have thought - the BHR is well over 20 years old