Well here is the result of my and Obsydian Shade's musing over a terrier equipped variant of the Götterdämmerung. This proposal gets the company name Daenerys (kudos if you get the reference)
The aft Mk13 gives way to a Mk10 for Terrier (of the tilt variety) as well as ASROC stored in the same manner that the Italians did. I *think* that in theory the magazine should be two spools amounting to 40 missiles over all though I could be wrong on that. The Mk13 forward would receive ISSM (then Harpoon) as well as the updates to SM-1MR and SM-2MR.
I'm a little concerned about weight especially unbalancing it towards the stern with all the added weight... The 40mms will remain as before with the possibility of either swapping them out for the equivalent 35mm or 76mm mounts. No helipad or hangar this time either.
All that remains is to say let the OMGWTFBBQs commence! ~Mark.