A "concrete plan" in this situation would include milestones (based on infection rates and the like) for easing restrictions and for re-imposing them if things

A "concrete plan" in this situation would include milestones (based on infection rates and the like) for easing restrictions and for re-imposing them if things regress, rather than specific dates, which can't really be forecast. For example, here's Nashville's phased-reopening plan: https://www.asafenashville.org/wp-content/uploads/2020/04/Roadmap_For_Reopening_Nashville_Grid.pdf https://www.asafenashville.org/wp-content/uploads/2020/04/Ro... ... It's based around phased reopenings of businesses as specific periods of time elapse with an improvement in metrics.