I'm not sure if that fits your exact field of research, but I would really like to see something on misdiagnosis, or delayed diagnosis, among HFA/Aspies, from a psychiatry angle.
I'm thinking in particular about the fact that many are diagnosed with, and unsuccessfully treated for, various mental conditions, especially among the "older" generations (and "older" can really be anyone older than 30). It would be interesting to see what incorrect diagnoses were previously made, and maybe things such as how many specialists were seen before a proper diagnosis was made/how the proper diagnosis came about.
Branching out from that, I'm sure there's a lot to study regarding Aspie sensitivity to medication, but I'm not sure if it fits within pharmacology or not. Maybe it's just me, but I know my body reacts oddly to drugs: I'm resistant to a small set (in spite of not having taken them previously, thus building resistance), and on the other hand, I react more strongly to significantly smaller dosage of other drugs. I do develop more side effects, at a faster rate, than I should. For some reason, I have a feeling I'm not the only one on the spectrum with those reactions, and if I'm right, it would be very useful to document it, because it means that a different approach is needed pertaining to prescriptions when it comes to patients with autism.