Very little risk in this imo. Most jobs that can be outsourced already are and many have been in-sourced again as it generally doesn't work well. Then there are plenty of other reasons like skill sets, regulatory reasons, tax reasons, grants and supports etc etc
Coincidentally, on the Last Word at the moment they are discussing WFH. Apparently Facebook are planning to lower wages paid to employees who WFH as they will not have cost of commuting or living in expensive cities.