Have you read this? Of interest https://blogs.scientificamerican.co...e-up-on-a-single-diagnostic-label-for-autism/
That's certainly encouraging, though it ultimately depends on a clinician's ability to recognize and actually apply those "subtype" categories. And how they might be documented for legal and professional purposes.
Simon Baron-Cohen was the author of the "AQ Test". An important name regarding autism in the scientific community.