You are losing a significant percentage of bookable rooms in the most sought after location within DVC (Epcot/MK area).
For total rooms just at WDW:
4679 total rooms in the resorts without restrictions
25% at MK
17% at Epcot
13% at AK
44% at SSR/OKW
In 2042:
20% of rooms will expire (all near MK/Epcot)
28% of rooms by MK
0% of rooms by Epcot
16% of rooms by AK
56% of rooms at SSR/OKW
14% loss of rooms by MK/Epcot (SSR/OKW rooms increase by 27% of total pool of rooms)
There are currently 25,485,757 points in resorts next to MK or EPCOT without resale restrictions:
39% of points pool that are next to MK/EPCOT will expire
100% of points pool that are next to EPCOT will expire in 2042
17% of points pool that are next to MK will expire in 2042
Currently there are 70,230,462 points in resorts without resale restrictions:
25% of points are next to MK
11% of points are next to Epcot
11% of points are next to AK
31% of points are OKW/SSR
In 2042 there will be 57,367,132 points left in resorts without resale restrictions:
23% of points will be next to MK
0% of points will be next to Epcot
13% of points will be next to AK
38% of points will be OKW/SSR
13% loss of points by MK/EPCOT