I have a son with Aspergers, he is now 10 and has been going since he was 4 months for normally 3wks at a time( we cone over from the uk )my son can react differently every time we go to Disney world,
1. When we took him
As a baby and toddler he hated fireworks because of the noise and screamed real bad so the next time we went we skipped them ( nanny would stay back at the hotel while hubby and I went) but a few yrs of skipping them the twins wanted to go and he insisted he would not be left in the room or pool with nanny, so we tried the noise reduction head phones they worked brilliant and he used them each time. And now LOVES fireworks..
I Also found he hated rides that went into a building, so the next trip we watched lots of YouTube ride videos so he knew what to expect, it helped lots and he tried many of the rides,
2. We could not let him get hungry/ thirsty or tired as this just made anything he would usually meltdown over 10 times worse! And he would flap nose rub and stim badly.
Does your child like to swim? We found taking a break to swim was very calming for him.
It gave him chance to cool down snack and get respite before going back to the excitement and over stimulation of the parks!
Water park days was some of his favourite days.
I let Brandon plan as much or as little as he wants to, we don't do everything he wants all the time as I also have twins who do not have any form of disabilities luckily even though they are a few years younger they are very patient to his needs, and will luckily put up with alot from him.
My son can be totally predictable at home but at Disney world I find that can go completely out the window lol.
For example.....
He always has to sit by me for everything but at Disney he wanted to ride on his own? And would make daddy and me sit with the twins.
One yr he went on everything the twins could not do,but last trip he hardly did any of the big rides as it wasn't special anymore due to his brothers now being big enough to ride with us too!
You won't know his reactions till you get there so make plans but if you see him struggling then get a GAC it can help depending on his needs!
Many parents do not know what to tell guest services as they don't know what accomadation their child may need, so let yourself get a feel for the place try the lines etc out, you can go to GS and get a GAC at any time, but at least you will then know what accomadation to ask for when you know the struggles .
Don't expect too much, that way you can be pleasantly surprised at what you get done,
Disney world does wonderful things for a child on the spectrum.
Have a fab trip