User blog comment:Ausir/Modern Warfare 3 for the Wii announced/@comment-98.206.222.151-20110804030121/@comment-122.249.117.228-20110805053247

Treyarch is most likely porting the game for the Wii, so it's more likely that Treyarch would be in charge of porting/publishing DLCs for the Wii version.