This meeting minutes mentions how one unnamed U.S. zoo is importing two Giant river otters from South America and is hoping to import four more otters from Europe. Two of these otters will go to the Los Angeles zoo and two will go to another U.S. facility to revitalize the Giant river otter breeding program.
Ah so this is in the process of happening, excellent. The Small Mammal TAG was trying to keep Giant Otter rolling and get it back to an SSP, hopefully all goes well!