The article, "The Psychology Behind Effective Crisis Leadership" discusses the need for Holding Environments, especially in times of uncertainty. I found this particularly helpful in thinking about some of the aspects of communicating plans for re-gathering.
https://hbr.org/2020/04/the-psychology-behind-effective-crisis-leadership
Holding "describes the way another person, often an authority figure, contains and interprets what’s happening in times of uncertainty. Containing refers to the ability to soothe distress and interpreting to the ability to help others make sense of a confusing predicament." "To face difficult circumstances, master new conditions, and develop in the process, we need holding from leaders and organizations. And we need to hold each other." The author provides prompts that can help you shape the holding of your organization. I've summarized them here: 1. What information can you share? What practical and detailed pictures of the future can you provide? What are the key priorities? 2. What rumours can you dispel? 3. Encourage and protect people's participation in the discussion and include "interpersonal holding" by creating space for people to express their feelings and their wonderings (such as using our container conversation techniques).
"It is tempting to resort to command and control in a crisis, but it is leaders who hold instead that help us work through it."