I had done something like this once, where I wrote us as the next step in human evolution. Although we looked exactly like humans, there were differences between us. Aspergians could telepathically communicate with each other, but not with humans. We also could heal faster than a normal human, but not so much as to regrow arms/legs/head/etc. to prevent death. Cuts, scrapes, breaks, etc. healed very quickly. In my book, we also had a group mentality. Because Aspergians usually 'major' in one area of expertise, they worked in Guilds that compounded the interest to reap astounding results. Our bodies were also 'hard-wired' differently, but the only real way to expose us was a DNA test.
Not sure if this helps - my idea never made it past my doodle notepad, so you're free to use it if you want, or just parts, or none at all.
-TB
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I appoint thee as one of the five.
Life. Book. Sign. Vision. Voice.
You are the vanguards of mankind.
Thou, indeed are the Bookkeeper.
Thus do I appoint thee and thy descendants.