I contacted Taurus about the lack of availability of certain models. Their response was that the factory in Brazil staggers production of certain models; they'll make a bunch of one model then stop, then make a bunch of another model, and so on. When the distribution channel runs dry of a particular model then it will be scheduled for production again.
The model I asked about was the 941SS - a stainless 22 WMR 8 shot revolver and was told that it would be in production by the end of May and available from US distributors by mid-June.
I have no way of independently verifying the accuracy of the above... but FWIW, there it is.