If you're talking can you buy one once they drag them off site, maybe but probably not. Disney usually drags that kind of thing to a back lot somewhere and they rot away. That's typically their MO. The new units look like tiny homes that could be built off-site and trucked in. Set them on the existing slab, hook them up and done.
Lots of speculation at the camping forum. Ask your question there and check out the opinions.
PS: I meant to say there are several threads going there already on the new cabins. Go jump in. You'll be welcomed.