Currently the Daily Plan shows only today’s assignments. We’re hoping to add a feature that will allow you to see tomorrow’s, but it’s still in the works. In the meantime, I’ve heard from users who either wait until midnight to print/preview (those who are night owls) when the plan switches to the next day, or they manually open and close the assignments by clicking on the gray triangles beside the resources’ titles. You can see which resources are scheduled for the next day by looking at those little “day of the week” boxes over to the right; the days that a resource is scheduled are green.
Hope this helps!