They are out to pasture. The point is what do you replace them with, because they still have a function, or do you allow the capability to go by the wayside?
You have to do a cost/benefit analysis. Obviously, this capability is not that important, otherwise the ships would be operational and not in mothballs. I can't see keeping 60 year old ships around just because they provide a "capabiltiy." We have cruise missiles, more accurate munitions, which can supply the needed firepower. We have trouble staffing a 300+ ship navy now.
I can understand the love of the battleship. It is an impressive sight to behold, but it represents a different era.