encouraging news, seems to only apply to high functioning kids.

Older children with autism did get this benefit, though, Foxe found, suggesting that their ability to integrate senses comes together by the mid-teens – at least in children described as high functioning, which generally means they have fewer language impairments

http://commonhealth.wbur.org/2013/08/the-autism-disconnect-can-kids-outgrow-critical-sensory-deficit