AprilLizbeth said:
Lastly, about not being wheelchair accessible, they would only have to update a few. Think of all the other resorts, only a small portion of their rooms are handicapped accessible. Disney has the engineering capabilities to modify anything, so I don't think that making a few treehouses compliant is the issue here. I think they were waiting to refurb them until resort demand increased enough to make it feasible. Now most of the resorts are close to capacity a good amount of the year, so they will probably start work sometime soon. Just my two cents!

If they renovated them, they would have to make a few of them accessible. If they just do upkeep and "cosmetic" renovation, I don't believe they would have to do anything to make them accessible. If they totally renovate them, they would have to do more.
The ADA "formula" amounts to about 4% of hotel rooms need to be wheelchair accessible. According to the formula for facilities with 51-75 rooms, 4 rooms need to be accessible, with only 1 room having a roll in shower. Since I think there were only between 50 and 75 Treehouse villas, that's very few they would have to renovate for accessibility.
There would be ways to do that, such as putting an outside elevator that takes you from the ground to the deck. From there, you could just roll in. There would not be a requirement to make the spiral staircase accessible and they wouldn't necessarily have to make both levels accessible without going outside. They would need to do some reconfiguring to make a roll in shower, but they can take out walls, as long as they are not load bearing walls, so I don't think that would be too hard.
And, there is another little wrinkle in the ADA that says they have to do what is feasible. So, if they do engineering studies and find it isn't feasible to make any of them accessible, they have an "out".
And, as someone posted, there is another "out". Elevators are only required for buildings with more than 2 floors - and another little wrinkle; each "room" is a separate building. The ADA exempts buildings that are less than 3,000 square feet per floor, so they could probably get by without making any of the rooms accessible.
Link to ADA information regarding hotel rooms.