My ds2 is going to officially stat at mainstream nursery tomorrow, just one afternoon a week, but its a start. He will still do his 5 mornings a week at his SN nursery, and the one afternoon at the nursery attached to my ds1 school. Really excited, nervous and anxious for him. His SN nursery nurse is going to go with him for the first session to help him and staff get to know each other, and also show them how to use his visual timetable.
Will let you all know how it goes.