I'm coming late to this thread and haven't read all the previous responses yet but--my personal opinion, this is just a bad idea! Between people with allergies, unattended pets making noise, damaging or doing their business in the rooms, seeing or stepping on dog poo on the hotel grounds, people getting attacked by dogs, etc. NO.
I'm ok with legitimate service dogs. I'm ok with people keeping their pets in the hotels in an emergency situation like Hurricane Irma. Everything else, NO! Leave your pet at home or board it somewhere.
I'm waiting for someone's child to be bitten by a dog staying at a hotel. Make it a pit bull and all hell will break loose on Disney due to bad publicity, regardless of the legal liability or guest responsibility. I know I would never take my children to stay at a hotel ANYWHERE where a child had been attacked by guest's improperly supervised dog.
"Resort trial will be held at Ft Wilderness Cabins, Art of Animation, Port Orleans Riverside and Yacht Club."
I know which hotels I will never be staying at again. Its a shame too, because I loved the Ft Wilderness cabins. Art of Animation--gross, just gross. The rooms there are already beat up in need of refurbishment, adding pets to some of them will only make it worse. I don't care how good Disney housekeeping is, I do not want to hear any dogs barking in a room close to me, that's a vacation ruiner right there.
And by the way, just so you don't think I hate animals with a passion, I am a pet owner. I love dogs, cats, snakes, fish, reptiles, and horses, I adopt rescue pets and donate to my local animal shelter on a regular basis.