Great to see this thread, because I had some of these same questions myself, like wondering about how far in advance to send the form in to special diets and exactly what info to include. I hope it's OK to ask a few related questions here rather than starting a new thread?
So from what
clanmcculloch said, it would be appropriate to include the types of foods my sons are hoping to order on the form under the comments section for each restaurant? For example sushi at Tokyo Dining, and pasta at Tony's?
I had sent several questions in the body of my email when I first contacted special diets, but I got the canned response with the forms, which was good, but didn't help with most of my questions. I didn't get any response to my second email at all.

I had wanted some info prior to making ADR's just to make sure the restaurants I was thinking of could accommodate my sons' lists of allergies (Eggs,Tree nuts, Peanuts and all other legumes, including but not limited to green peas, lentils, chick peas, split peas, black beans, kidney beans etc.(Exceptions: soy and green beans are OK), Mushrooms (incl. truffles, truffle oil)). Thanks to info here on the DIS

cheer2

and some other sites, I got some of the info I wanted anyway and went ahead and made ADRs with the info I had.
I would still love to be able to get some specifics before our trip though. It would really help with managing expectations for my sons, who both also have Aspergers. For example they're both really interested in Japanese culture, and a friend came home and told them about eating sushi and kakigori at the Japanese pavilion. If they could do this too, it would make their trip. They're talking about it every day (we're still 5 months out!). If there was any way of confirming that the Kaki Gori will be safe for them, and/or that the chefs at Tokyo Dining could accommodate us for sushi
before we go to avoid crashing hopes and meltdowns when we're there, that would be really, really helpful. Has anyone else had luck getting this type of info before a trip? And if so, did you get it through a regular email, after you'd sent the special dietary request form or through a phone call?
I'm also wondering about CS restaurants. Does anyone list those on their guest allergy/dietary request form too?