Olivia Mitchell of the Wharton School said expat retirees tend to stay abroad until their health begins decline, at which point access to U.S. medical care and family becomes a high priority. “This epidemic may hasten that return flow for people on the edge of that, who are starting to struggle with taking care of themselves,” she said.
https://www.washingtonpost.com/business/2020/05/26/retiring-sunny-foreign-vacation-spot-was-american-dream-now-coronavirus-is-forcing-some-expats-come-back/ The Washington Post