A little bit of storytelling advice...
I think that there definitely needs to be an Aspie superhero, but I think you should make sure to develop the character as a person first and an Aspie second. If the character is just a collection of stereotypical Aspie behaviors, he won't ring true. I know that the influence of Asperger's Syndrome is profound, but even amongst the Aspie community, there's a lot of diversity. Your character shouldn't have the burden of representing the entire autistic spectrum, any more than any other minority hero should have to represent " their " people. They just become symbols, not people.
However, if the character is a unique human being who happens to have been influenced by his autism, but not always dominated by it, then he has a much greater chance of being a good character. He becomes less insular, appealing to just people familiar with the spectrum, and more universal. Though not everybody can relate to Asperger's, everybody can relate to a well-developed character. From that, the rest of the story trappings will come naturally.
I'm working on a similar project, a fantasy comic story that relates to Asperger's, so PM me if you want more feedback.
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