I don’t foresee demand that high for current DVC membership. It appears that DVC is trying to get the current Cabin renters to buy into DVC. Yes some current DVC members will use them, but the vast majority do not like the multiple bus stops and transfer to go to another bus. Just ask people who stay in the Tree House Villas at SSR. You have to plan to leave about 1.5 hours before you want to get somewhere when you have to transfer busses, or even Monorails. Now current renters of the Cabins are used to it.
I think this is a big part of it.
And along those lines, not just the cabin renters but also the camping/rv crowd.
The Fort has a very loyal camper/rv following with large number of guests that come frequently: annually, once a month (locals), or any travel pattern you can imagine and people tend to stay longer. The longest reservation length is 30 days and you'd be surprised how many people will stretch it out that long or close to it (not as many during the high price times like Easter, Spring Break, or the Christmas-New Years) but I was surprised to learn the high number of repeat visits of considerable length.
Camping and RV'ing is a lifestyle choice and although it can be done economically, those trailers, the trucks to pull those trailers, and the Class A, B, and C RV's don't come cheap. And ongoing maintenance/repairs feels like annual dues payments. But I've stayed a few times at WDW resort hotels and nothing feels as good as the Fort to me. So this is the first chance for people like me to consider the option to "buy where you want to stay". And the first attempt to build on the old River Country property (will-not-say-its-name) did not have the look or feel of being at FW although it geographically was.
Eventually (soon) Disney will build something on River Country property and it will have a DVC component (partially or completely) and those amenities will be available to CFW possibly.
CFW is an option I would consider down the road as a loyal FW camper.
Bama Ed
PS - BTW, FW has 363 cabins in loops 2200-2800 and 2 additional cabins in loop 100 for the record.