I actually think this scenario is going to happen, at least through the beginning of 2021.
I expect that when Disney reopens in mid-July, that they will limit park admittance to about half capacity. Since full capacity is supposedly around 320,000 people for the 4 parks, this would mean they have room for about 160,000 people. There are about 30,000 Disney Hotel rooms on property, which would hold about 120,000 people. There are (I believe) around 4,250 DVC units, which would hold maybe around another 25,000 people. I will be shocked if Disney doesn't give first priority in reserving a Park Entry slot to everyone who is staying on property. This means that of the 160,000 people who will be able to go in, 150,000 or so of them will come from the Disney Hotels and DVC rooms. DVC will become even more popular than ever.