You are so right ASDMommyASDKid. This is why I am fighting to get her into the ASC unit, I believe it's currently full. The stupid thing is, that this inclusion policy means I think they have let children with other needs into the ASC unit when it's only meant for exactly what my daughter has, HFA, and AS children.
They told me her teacher in the mainstream would be a man with a loud voice! And as she will be new and if they get their way, not have a 1-2-1, they will probably put her near the front, so he will be booming at her! She has got quite bad auditory sensitivity. At home, her learning takes about half what the typical school day takes. She doesn't have it in her to listen to teachers all day long. Even if I'm telling her important things, not taking too long and trying to not be monotone (to make it sound more interesting to listen to), she switches off totally and then announces "Mummy, I'm not even listening to you so you may as well stop." She told me she finds people talking boring (and to engage in talking). So a teacher who is not ASC trained, and cannot give her individual attention is gonna be an interesting experience.
I don't want to worry her by telling her that the school is showing her all the fun stuff first and that day-to-day won't be like that, it's really hard to know what to do. If I don't she will get a nasty shock, if I do, she won't want to go even more. 
_________________
*Truth fears no trial*
DX AS & both daughters on the autistic spectrum