I think Asperger's Syndrome is, for the more fortunate and milder affected of us, a condition that can be adapted to, to the point where we can function well in society and it would not be apparantly obvious to an outsider that we have the condition.
I don't think it's something that ever 'goes away', but we learn how to cope and we become better skilled and more confident as a result. There will still be some Aspies who will always be obviously 'different'... some to the extent where they'll need care all their lives. But many of us - perhaps even the majority - will be able to live independant and functional lives. It just takes us perhaps a little longer to get there, and it's a little more of a struggle.
Things such as eye-contact, social cues, body language interpretation... they CAN be learned, and some Aspies might not even have very severe problems to begin with.
Myself, I had _severe_ social problems as a child and teenager. I could not 'do' eye contact... I could not handle phone calls... I threw public tantrums. I was clearly not 'normal'. The progress I have made over the past few years astounds even myself. I have flown to America several times, alone, to visit a friend. I have succeeded at job interviews. I can answer phone calls and ask for things in a shop. From the impressive to the mundane, they are all huge accomplishments, and I am finally starting to find that I have learned them enough that they are almost second nature to me.
I've come so far that sometimes I do wonder if I'm 'still' an Aspie. Did my 'condition' get less severe? I no longer scream when buses pull up. I'm not obsessive about doing things in even numbers. I don't freak out if someone is standing behind me. But that doesn't mean I don't have problems with those things anymore. Most of the time, I forget that I'm an 'Aspie. But thunderstorms and fireworks still bring me to tears of fright. Odd numbers still give me a weird feeling in my stomach. I still feel tense and on edge, even tearful, if someone stands behind me. I just cope better now. Certain situations and conditions, especially in times of stress or change, still very much bring out the Aspie in me. It won't ever go away. But AS doesn't have to be something that hinders us or that we're always aware of. It can be there in the background, and maybe no one even has to know 
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~I wanna fly high, so I can reach the highest of all the heavens
Somebody will be waiting for me, so I've got to fly higher~