DISCLAIMER: This is information just to keep in mind and is fluid with so much for Disney to coordinate. It came from an inside source this week. Things could happen this way or not; but this is what they've been told most recently.
We all know the DVC and campground will be opening first. They were told that when Disney begins to open it will be Deluxe resorts only minus one. Moderates and Values will not open at the beginning - this would be why the information about moving guests. It gets further complicated as they are looking at each individual reservation ... and guests will be handled individually, so what you hear happens to someone else might not happen to you. They said some may get moved, some may get cancelled.
In resorts, obviously there will be lots of operational changes to reduce guest/CM interactions.
Yes, discussion is that CSR will be reserved for two sports leagues but that is still in negotiations. With values and moderates closed, so will be the skyliner, for now. No boats from resorts to parks; they will use monorail or buses or walk. This is to avoid close quarters and constant sanitizing. Ferry boat will operate to MK and sounds like non-Disney guests will not be using monorail to MK reserving for guests. Boats will be used for FW and WL. I suppose not using for monorail resorts gives them more boats for those resorts, carrying less people.
AGAIN, this was shared by someone inside, who works resorts and has been there for years. Plans are ever evolving and changing. I share it because if I were booked I would want to be prepared for just about anything happening. What was shared seemed so, wow, but made sense and I can't blame them for wanting to open safe, and the best way financially.