That's an impossible question to answer. Kids with autism are different. Each child is going to need different things in life.
The only constant, in my experience, is that they all need care and education that is relationally based - that we focus on creating a safe, comfortable and joyful home/school for everyone involved, and that care givers focus on learning how to understand the autistic person's communication as much as they work to help the autistic communicate in standard English.
It really is a nonsensical place in which we find ourselves today, in that we seem to expect that we will someday discover one best way to educate everyone. That's just weird.