I don't want to sound too negative but my dd who has AS and dyspraxia had a terrible transition to High School. I really regret underestimating how hard it would be for her 
I'll tell you a few things which I hadn't anticipated, but please don't let it worry you. You have the benefit of getting stuff in place and learning from my mistakes!
She struggled with lockers, how to open and close. She didn't understand which stuff to leave in her locker so she ended up carrying everything around with her.
She got very muddled with homework and due dates and such but there is a teacher email set up which helps.
She got lost quite a lot between lessons.
The cafeteria has a payment card system. I found out that people were asking dd to buy them (a lot of) snacks and she was going along with it. Also she often queued for so long that she had to rush to eat so she takes packed lunches. She still buys snacks but is more controlled now.
Sometimes lessons were moved to a different classroom last minute and this would throw her. She once "went missing" she was in the wrong lesson and no-one had noticed 
Sadly dd relied heavily on her friends for practical help and put so much strain on them they all fell out with her. It was heartbreaking but they are friends again now.
Curriculum support is really helpful for breaks and lunchtimes when it all gets a bit overwhelming, she still uses it now.