Here is a Military Times article about it and the text of the DoD press release below. Many people will have questions, but until we get the Navy specific guidance (like a NAVADMIN) it will be hard to answer them:
Effective today, Secretary Esper approved an extension to the stop move order through June 30 to aid in the further prevention of the spread of COVID-19. While the Department acknowledges that this order will have great impact on our service members and their families who are looking to proceed with their lives, the rapidly changing environment has created significant risks to service members, as the DOD continues personnel movements and travel. The decision was made in order to protect U.S. personnel and preserve the operational readiness of our global force. The Department now has procedures in place to allow for additional waivers and the resumption of travel for several categories of travelers that were previously suspended, including deployments.