I don't have an autistic child, but our family prefers a break from heavily themed, busy areas when it comes to our Resorts.
POFQ is a great option - it's the smallest of the Mods, and it still has a nice little playground, as well as a great splash zone next to the pool. Perhaps the only issue I could see there might be the sound of the boat horns as they arrive/leave from the dock, and as they pass by to/from POR down the river. If he likes boats, then you are in luck - they depart regularly for a 15 - 20 minute trip over to Disney Springs!
@andrewilley runs
the forum for POFQ here on the DISBoards, and he also has an excellent fan site that he runs as well at
portorleans.org.
@tinkerjo's idea about the Cabins at FW (Fort Wilderness) is a great one - they are more spendy than a Mod, but you get SO much space - and SO much tranquility! I feel relaxed just thinking about our stays there! The bonus extra is how friendly everyone is at the Fort; folks will smile and wave from their campsites or porches as you go by, and it is probably best nights sleep you will ever get at WDW!
WL (Wilderness Lodge) is our favorite Deluxe, hands down. It can be a bit noisy in the lobby from time to time, but overall, the feeling is peaceful and relaxing - it really does feel like one of the old grand lodges out in a National Forest somewhere. We love the boat rides from here as well; you can travel to/from MK or Fort Wilderness by boat, and everywhere else by bus. If he likes to be rocked, there are wonderful, comfy rocking chairs in the lobby in front of the fireplace

Bonus fun extra for some kiddos is the "spring" fed creek that starts in the lobby, with a little bridge you can stand on to watch the water.
AKL (Animal Kingdom Lodge) was actually designed by the same architect that created WL; we prefer WL because it is smaller and has a "cozy" feel, but also because the theming at WL is just a bit more "neutral" for us. AKL is so gorgeous, but I actually prefer to just visit there; I can feel kind of overwhelmed there, and it feels busier to me (personally).
You will find lots of great advice here that might be helpful to your little guy. Congratulations on your big accomplishment - and I hope you all have a Magical trip!
