https://www.mercurynews.com/2019/11/20/h-1b-visa-rule-to-ban-h-1b-spouses-from-working-coming-in-march-homeland-security-says/

The U.S. Department of Homeland Security will publish in March a proposed rule to strip work authorization from spouses of H-1B visa holders, the agency said Wednesday in the latest federal government rule-making agenda.

While the announcement in the Unified Agenda should be taken with a grain of salt — the agency has several times missed its own deadlines for proposing the rule — a March date fits with a Department of Justice memo that said the planned rule could be published as early as spring 2020.