Well to actually answer the question...No they have not. They're been produced in the .17 HMR (convertable with .17M2 also), the .22lr/.22 mag convertable, and the .44 magnum as cataloged modles. A run of .41 Hunters were produced for davidson's and .45 Colt hunters were produced for Lipsey's.
I have a sneaky suspicion there'll be a .357 hunter within a year or so from one of the distributors.