ebec11 wrote:
Improve is different then completely change from not ever going to speak kind of Autism to extremely high functioning honor roll Autism
No, that's how improve is defined; I was in the "not speaking" camp, and I gained adequate speech; anyone who gains adequate speech will be rediagnosed as Asperger's (depending on the institution) if they're able to communicate their point across and they don't "stim" almost constantly when in the presence of people.
It's common for people with autism to improve in this way.