You know, something that Disney could do that would both increase the incentive to stay onsite and would also help them redistribute the crowds would be to offer more fastpasses to certain resort guests at certain parks on certain days. Let me explain.
Group one: Contemporary, Polynesian, Port Orleans Riverside & FQ, Pop Century
Group two: Grand Floridian, Wilderness Lodge, Coronado Springs, Art of Animation
Group three: Boardwalk, AKL, All Star Movies, All Star Music
Group four: Yacht and Beach, Caribbean Beach, All Star Sports
On Monday, Group one would have more fast passes at MK, Group 2 at Epcot, Group 3 at DHS, and Group 4 at AK. On Tuesday, Group 1 would have more fast passes at Epcot, Group 2 at DHS, Group 3 at Ak, and Group 4 at MK. So on and so fourth. People like having more than 3 fast passes so the incentive would be high. It would also disperse their onsite guests more evenly (you would need to put them in groups evenly and I don't have the numbers to do that) and give Disney a very good idea of who would be in which parks on what days. You can do this by allowing them to book extra FP+ or, my recommendation would be, give them a card or something - possibly load it on the magic band - that has, say 5 fast passes, that are eligible at any of the attractions. A person wants to use all 5 on Space Mountain, they can. They want to use them all first thing in the morning, more power to them. If they want to split it up and use one every 2 hours, they can. I think the guests would be more content because they would have more fast passes and not be scheduling as much of their day unless they really wanted to and Disney would be happy because they would have the guests more or less locked into a park the same way they are locked in with FP+ now. EMHs are no longer needed so they aren't staffing those hours and guests still have a major incentive to stay on property.